I just got the new y pipe cats on my 06 YukonXl bout 6 months ago but I have quite few mods including a tuned and my cats no longer have platinums inside my cat due to the amount of exhaust flow it has so I have had a check engine light ever since they are basically straight pipe now
As a state inspector myself for Texas, if there is no check engine light and the codes have not been cleared, it should and will pass unless there's something else wrong. Now on the other hand, this will fail a state inspection if they visually inspect the exhaust system like they should, which most places don't. Especially here. I'll just pass my own shit lmao
This worked for me, I gutted my converter and I only used one spark plug non fouler, worked great and gave my Jeep power I have never had before, thanks for the info, no engine light, more power, engine runs cooler and better gas milage, what a cool hack. Thanks for the info.
Just did this trick for both plugged (now gutted) cats today and it works like a charm. 👌👌 Added bonus: my truck is now Anti-tailgater at stops and at open throttle. 😂 Edit: You deserve this Sub. Thank ya brother.
@@rob5598 Maybe the bulb for the “Check Engine Light” burnt out!?!?!? Lmao. Btw, that is how I always turn my “CEL” off is by just removing/unplugging the bulb!!! Worked like a champ EVERY single time that I’ve ever done it!!! 😂😂😂
bruh cats are worth money why didn't you just take em to the local catalytic converter place and get a straight pipe or just cut the flanges sell the cats and weld a pipe in place of where the cats were
You only need to add a defouler to the downstream 02 sensor. The upper 02 are measuring pre cat if you defoul the upstreams it will throw off your air/fuel mix.
That sounds like my truck. Ive changed everything on my motor. My exhaust smells bad. I put it on a machine. They cant find anything. My engine light is on. I should've left my cat on but i thought it was giving me problems.
Yes you guys have got to use some common sense the downstream only monitor the efficiency of the catalytic converter upstream is responsible for air fuel mixture
The only reason the downstream sensor is on the vehicle is for the computer to see that you took off/gutted the cat converter and to deliberately make the vehicle run like crap when it's been deleted in order to keep the Commies that run the EPA happy, and to force us "evil auto owners" to blow more of our money on useless bu11$hit at the parts store. When the companies first put cat converters on vehicles, they only used one O2 sensor, and those vehicles ran just fine that way. Look at the 1988-1994 chevy/GMC pickups, suburbans/tahoes/s-10's, etc.
but your cat is still clogged you doofus so you're going to be down on power that's why I get on it in my car every once in a while, to burn all the carbon out
I Did this several years ago and I learned that the smallest hole possible will work. Also you’ll want to seal around the original o2 sensor hole. As soon as that sensor starts reading outside oxygen. Check engine lights back on.
Just came across this video. Why not use the longer foulers instead of drilling one and putting them together when you can just use 1 with our the drilling? The longer one is the exact same size as these 2 put together. Am I missing something? Thanks
Exactly what I was thinking just get the longer fouler that's what I'm going to do my 2004 Rodeo if wasn't running rich because cats were cut off it would be running amazingly!@@mannynieto21
anti foulers are for old wore out engines that burn oil, so the oil dont drip on the plugs and foul them out. I used to drive 25 miles to work in a old 1969 pontiac temptest, the plugs would foul everytime i hit the freeway, I would go pull them all and clean them at lunch so i could make it home. Got some anti foulers and my troubles were mostly gone.
Heres some more info on this as I was battling the cat inefficiency code for about a month on my 2011 Mustang GT: The secondary O2 sensor measures the amount of oxygen going through the catalytic. The cat consumes oxygen as it converts NOx and CO into O2 and other gasses. NOx and CO are pollutants that it tries to eliminate. I believe that if the cat is throwing the P0430/P0420 code, it reads too much oxygen going through. Some people get rid of these codes with the defoulers and end up with a P2096 code. As I understand this happens quite often with this setup. The P2096/P2098 code is post catalyst lean code, which also means too much O2 passing through the cat, which happened in my case. What I did was simply use a third defouler on the bank 1 O2 sensor (P2096 code). Worked perfectly. You can try stacking the defoulers until the sensor reaches the optimal voltage. If you run out of room to stack them, they sell O2 angled extenders which is basically an elbow fitting to space the O2 sensor further from the bung.
I'm glade I just read this. I wouldn't have thought to further space it to manipulate the reading. Nice! You have to work on automobiles the way you make it sound simple.
Thanku! SOUTHERN MAN,ALOHA FROM HAWAII, DOIN IT ON A DIESEL N GAS E320 MERC! ALREADY HAD 8 NON FOULERS FOR A BUCK APIECE,NEED TO SELL THE CATS FOR 1000 BUX!GODSPEED BROTHER
This did NOT work for me At first. Had to add steel wool to the bottom one and worked perfect for my Silverado after adding it. Helped the truck run better and increased my gas millage. Thanks for the Video and keep em coming!
@@JohnSmith-xx1lx are you asking about brillo pads or just plain steel wool? theres also steel mesh pads you can get that are a little thicker fibers than that of wool.
Anti-foulers are for engines that are burning oil and someone doesn't want to rebuild yet. The spacer removes the plug from inside the cylinder so the oil doesn't burn onto the plug tip, shorting the gap and preventing the spark.
I've got an 04' Yukon 5.3 I just straight piped. I've always wondered how to trick the computer with the O2 sensors when removing the cats. My county doesn't require emissions testing so I don't need them anyway.
What i did for my brothers 05 ranger with the 3.0L was cut the cats open and gutted them and welded them back up. Truck still has the stock muffler but damn it sounds nice and runs good
or you could just install a resistor into the send and return wires at the rear o2 connector to simulate a lean output mix. This would have no effect on your fuel consumption since the downstream o2 is just a cat monitor. The PCM will not know the difference.
the downstream sensor(s) report a voltage signal typically of 0.01v to 5.02v back to the PCM (Euro and Asian will be 0.01v to 1.02v). The PCM is looking for a steady voltage signal and flags a P0420/P0430 DTC when it is receiving one closely matching the upstream sensor. The voltage return signal is varied by resistance generated within the sensor. If you were to install a resistor between the send and return wires to emulate solid signal return, say 500 ohms or so, to get the return voltage between the expected parameters, the PCM will see this as a "catalyst working properly" condition and not throw a fault.
Man that makes perfect sense. I got about 1009 resistors laying around, think I'll try them until I get one right. Thanks for this comment! God bless your soul!
this method costs no more then $5 if you have 2 cats and works on EVERYTHING anything OBDII it works on absofuckinglutely everything .. as for the resistor method ?? every car needs a different value resistor as well as different years of the same fucking car and you dont know what you need unless you google it from a forum if you guy them ready made your looking at roughly $25-$75 each for plug and play with cheaper ones might have to be spliced into your factory harness while the space method works on all ..if you need more clearance you can buy ones with 90 degree angles for a massive price of about $12 each ...
@@redneckengineering7739 for sure bro ... I will never regret of having a c5 which was my first vette but finally I got my favorite the c6 ... Everything is about taste and I think the c7 lost the concept of Corvette but to each their own... I really love mine and as you said the best vette for under 20k is the c6 ... Where are you located??
Great video! But for those that do this, don't forget to flush the memory in the ECU, several ways to do it, easy way is to disconnect the battery for a few hours, or disconnect - side of battery and run a wire from - to + for 5 minutes. Than restart and do the warm up setup as per vehicle, your car will relearn if any changes are made, most likely doing the cat thing will not change much if any, but it is always a good thing when you change anything fuel or electrical wise that effects the engine.
Ny is ridiculous. I had 10 days. I didn't know that the cat was removed and had a straight pipe. I had to go to Pablo im the Bronx. Took a pic of my registration. Passed it through the DMV. Bam sticker and one less problem for a year.
The non-foulers worked for me. I installed them and at first, I didn't think this was going to turn my light out. However after driving it 100 miles, and driving it a little hard, the light went out. I passed the inspection test. A $6.00 investment! However most videos I have seen on TH-cam, the guys put the NON-FOULERS in the vice and run a 1/2" bit through the threaded side of the NF taking the chance of hitting the threads. Turn it around and put it in the vice with the small hole up. Gradually increase your bit size, (making sure to hold the drill level) until you get it open to 1/2". You don't need the crush washers, except the one between the first non-fouler and the 02 bung.
Hey man I have a 2008 mustang gt catless x pipe. I have 3 o2 sensors on the pipes. 2 o2 sensors on the passenger and 1 on the driver side. Which bung would I put the non foulers on? Just the downstream o2s? And how many non foulers would you recommend to put on 1 o2?
Yup. In my state, I would get a big fine. Here, it is better to just replace the cat with a cheap after market cat every 3 or 4 years. But if not required in your state, looks like a workable solution.
In my state the state of MA if your vehicle is 15 years old or older then you do not undergo an emission inspection just a safety inspection so the cat's, egr, and smog pump are not required
You can get a dummy catalytic converter. It may look like a catalytic converter, but there's no baffles inside of it. They have a pipe running through it.
Thank goodness for Oklahoma. No inspections of any kind, no emissions enforcement. You can run straight pipes with police all around and it's no issue. I hated living in a state that gets in your personal business like that. I remember when it was like that here and I was thrilled when they finally did away with inspections years and years ago. They want to tell me what to do with my vehicle that's fine, pay for it and I'll set it up how they like.
Yeah... I was thinking the same exact thing. Did he watch the video and go...Oh shit let me redo that one there!? But yeah we do get it. Dislexic info, but good info Lol.
Good idea man! I know that all the o2 sensors function according to tempature. So as long as they are with in the correct tempature, they will send the enough voltage to the computer.
Nice job. This is what we do in our cenre for getting red of check engine light. Have you ever heard about programming ECM for USA FJ Cruiser to change the vehicle specs. It is like changing CAT configurations so that we tell the vehicle not to cosider trouble codes those come because of CAT issues.
Great job! My honda Ridgeline gave a P0420 on bank 1 so I put an anti-fouler on the top of the cat which is bolted directly to the motor (it has an upper and lower). I cleared the code & drove it for 20 miles and got another CEL for P0420 below threshold. This time I put an anti-fouler on the lower one, hopefully that did it the trick. Truck has 145,000 miles.
@@RyanTinger gonna try this next, seems to be a little unorthodox but seems to have gotten great results from others. th-cam.com/video/5icTmYItwiE/w-d-xo.html
@@RyanTinger I should note that I have replaced BOTH Sensors on this particular "Bank" and cleared the codes yet still got the "P0420" code. But since I only drive this vehicle less than 5k miles per year it is exempted from smog testing which kind of works in my favor
Your oil pressure gauge is probably due to a bad oil pressure sending unit. If your needle goes down when you turn your truck off, then pegs when you start it, it's the sending unit. If it doesn't move and stays pegged, it's probably the stepper motor behind the gauge. This is what happened on my 2004 Yukon. Not really hard to change, just gotta rent/buy an oil pressure socket and reach back there behind the intake and replace it.
Did it work on your tahoe? I have a 2002 trailblazer that has some converter issues and want to know if this hack will work without issues before tearing the exhaust out
Did it work on your tahoe? I have a 2002 trailblazer that has some converter issues and want to know if this hack will work without issues before tearing the exhaust out
You were talking about the oil gauge. On my Suburban that happened to me and it was my oil sending unit. About two years prior I had the motors in my instrument cluster replaced by company in Richmond Virginia and everything works great.
i tried this on my ford focus st225, its a 5 cylinder turbo you did not get them in the usa you only got the later year model of that car, i installed the decat pipe on the car and used the non fouler with the o2 sensor and still had check engine light, reset the ecu many times. i then got a lamba spacer with a 90 degree bend in it and put the o2 sensor on that and still had a check engine light. i packed the spacer with wire wool and still had cel for high temps detected. so i put the cat back in place and the cel went away, for some reason my ECU must be very sensitive to the heat threshold it thinks is acceptable before giving a cel. if i do install the decat pipe again im going to have to get a tune like you said to turn off the code.
So far so good🤞 first 30 min drive after cutting clogged cats out. I installed the defoulers and cleared codes.. zero cel currently present- 2010 4.3 gmc sierra
for the oil pressure issue, pull out the oil pressure sender and under it down in the hole is a filter. Small filter that you can replace for less than $5. Found this out after chasing an issue with oil pressure! After changing it I have had no problems with oil pressure.
Yes, Module Masters is trustworthy, DO NOT use Module Experts in Jacksonville,FL. They have 50 complaints with BBB for multiple issues and you will regret it! I did...Module Masters has no complaints filed with BBB. A+ rating
@@sethjordan8917 I'm guessing it act's like a mini cat so there's back pressure going to the sensor. If there's too much flow or not enough heat engine light might come on. 🤔
It will pass some state inspections depending on the state it in Missouri it will because they don't check the exhaust in California they check all of the pollution control
I remember in the 80s, ever GM car I had it was my goal to get the orange check engine light off. Now ever car I get in has some normal orange light on that drives me nuts.
Sir your gauge works... when it pegs to highest pressure most of the time it’s actually the oil pressure sending unit ...the $6 part that tells the computer and gauge the oil pressure... just replace it
I don't know why you people continue to argue with me it is the gauge cluster and is showing 0 not the highest if the computer was reading 0 it would say low oil pressure on the display
Actually now that I remember it did show pegged out then but now it reads zero these trucks are known for gauge cluster issues the stepper motors go out
You can buy a kit from amazon and eBay with the stepper motors and a soldering iron and a solder vacuum tube thing basically everything you would need to do the fix it took me my first time doing it only 30 mins to pull cluster swap the motors and reinstall the cluster was super easy when you go to pull the needles off the motors use a fork and they won’t break good luck
I just picked up a 94 Chevy 1500 Silverado. The guy cut the cat off and occasionally the check engine light comes on. Wouldn't it stay on all the time if it was the sensor? Generally it's when I hit speeds above 70. Thanks from Ga!
That is not why the check engine light is coming on it probably has a random misfire or something like that maybe a vacuum leak but not the cat I don't even know if there were a secondary O2 sensor and 1994
i have the same truck as you but darker with cat deletes i used to run 2500 rpm at 110 km/h (70 ish mph) down the highway. After the cat delete im running about 2150 rpm @ 110 km/h (70ish mph)
to reset gauges back to zero, put the gear into drive (foot on the brake) and try to start it each time it will try to reset itself (move a little to the back), start it again before it tries to move forward... it will move again to the back just a little... hit it again before it turns... etc
I sent my instrument cluster on 2 vehicles several years ago to mandigital and had them replace the stepper motors on them, and never had any problems after that.
I just tried this and it worked great. I only used one of the non foulers because of how little space I had to work with. Just using the one still worked.
@We Are Anonymous Yes you do still have to drill it. A 1/2 drill bit works perfect. It only takes a few minutes to drill it out. You will want to clamp it in a vise ideally, when you drill. But be carefull when clamping it down, the metal is pretty soft on these. There are videos on TH-cam of how to drill it out if you are curious what the process looks like.
+Billie Alonzo yeah you're doing it incorrectly that's why you use this on the rear O2 sensors if you removed the cat that's it this isn't to fix an O2 sensor code
In 1970 my Uncle was a mechanic I bought a call for 50 bucks the engine was bad Oil was getting past the rings That's what these are designed for Then Got drafted into the army With the money I saved got myself a new car Back in the day you could buy a new car $3000
SRT8/power 6,4 you dont know much about inspections now do you? The computer NEEDS to read emissions as READY. Has nothing to do with having a fault code. Fault codes can be turned off. The computer needs to be tricked into thinking it has the restriction of a cat or the cat and 02 sensor will not read ready in the system.
R35PECT i was NOT referring to exstention o2 to trick pcm ! Lol but in my state if u do have codes that r NOT fixed nd just cleared !! When u go to the inspection , theyr computer will read all ur BS !! Nd they will tell u , ur car has faulty codes that has been erased!! So yes i no bout inspection nd bout tricking the pcm of car very well !! No need for ur 2 cents there buddy boy!! U aynt no savant , trust me when i tell u
SRT8/power 6,4 listen kid, you have no clue what you are talking about. Many cars have codes that won't pass because of a problem. They repair the problem and clear the code. So you are telling me they won't pass inspection after that? Lol. If the emission system shows all systems ready they have to pass you. Having prior codes has zero to do with passing. Ok kiddo? Get the point now? Are you done being clueless? You clueless little bitch.
Does this have anything to do with keeping your exhaust smell down? Even though my catalytic converter works? I installed a cheap catalytic converter but I still smell sulfide because I was told it was a cheap catalytic converter. I was just wondering if this would help to lessen the exhaust smells? thank you
I tried this today. I got the 42009 and used the 1/2 bit and my sensor still don't fit so I try the next size 5/8 and it broke in half. My truck is a 1999 Silverado 4.3 v6. (Help) please
this is because you do it with strenth...try easy next time...you must be veeery careful and try veeery easy to contact with your drill...the problem is very known for me...if you make a hole and try to make it larger your bigger drill will use only its corners and it will cut in and break off...this is why u need to make contact veeeery easy with low to medium RPM....when you drill metals you never use high RPM...remember that...i hope this was helpful...good luck
Also as we live in the 21st century where we use the metric system 10mm is probably better then use a dremel or measure exactly and use the right bit but use slow speed and torque to start
It will still pass as long as the readiness moniters are set and the CEO ain't on then guess what, it passes inspection and emmissions. This guy is fucking stupid and spreading his stupidity like wildfire.
I have a 1994 F-150 5.8L that I just did a smog delete on and am changing the stock exhaust manifold to full length headers, removing cats, and having true dual exhaust put in. I am guessing I will need to have a piece of pipe that has the threads for an O2 sensor so I can try your method.
one thing to note using this method as both upstream and downstream sensors HAVE got to be fucking working properly if one of the sensors is bad you need to replace it before this will work
all I needed was the dill bit size yet that's all u didn't tell lol.. I heard it will pass inspection , visual they could see but throw them $10 or go to a guy u know n u should be fine, make it look old and rusted they may never realize
Been doing this for years however watch your video once more ... you screwed the end that you drilled a hole into on the wrong end ..yes you did watch your own video you put the one with big end at the end so that it screws into the converter pipe and the other end which hasnt been drilled will refuse to let your o2 sensor to be screwed in .. and this method also works if you replace a factory convertor with a high flow performance one that triggers the fucking CEL
did u feel any power gains at all when removing the cats? I have the 98 gmc 5.7L vortec with aftermarket exhaust and headers, headers didnt do shit for power, i am hoping removing the cats will
I have a 2004 hummer h2 with a 6litre vortec im about to delete the cats , my question is what MM non foulers did you get ? Iv seen 12mm and 18mm non foulers?
Didn't work on my truck, gave me a code for bank 2 sensor 1 inefficiencie slow reaction, or something like that. I ended up just using an $80 cat from the auto parts store and fixed my issues. Congrats if this worked
@@redneckengineering7739 Yeah, I had my cat's removed. Although I will say, my engine light stayed off for about 200 miles. Long enough to get it to pass state I.M. but then got that code and decided to just put cats back on, which I kinda like bcuz I can run without a muffler in line and it's not to loud, without the cats I had to have a muffler bcuz it was to loud in the cab anyway it is a good thing if you can get it to work.
I have 4 on my explorer sport. Could I just gut them and leave the sensors plugged in normal? Or would it still throw a code? I have a Flomaster 40 series and I just don’t think it’s as loud as it should be for having that exhaust.
I have a 2000 tahoe limited check engine light is off but I can hear a raddle coming from Cadillac converter if I do this will it hurt my engine or change the engine performance of the engine
I'm getting a code p2069 post catalyst fuel trim system running too lean bank 1. im catless, but wouldn't i put the fouler on the o2 sensor closet to the engine since it says bank 1? I'm new to this car stuff.
Very knowledgeable, my catalytic converter craped out. I did not want to pay 500cash for a new one. Thanks a lot man!!! 🙏🏻
I just got the new y pipe cats on my 06 YukonXl bout 6 months ago but I have quite few mods including a tuned and my cats no longer have platinums inside my cat due to the amount of exhaust flow it has so I have had a check engine light ever since they are basically straight pipe now
Lucky you mine costs almost 2500
@@calilife3588 Go to a junkyard. Find a car with the same exhaust pipe size.
Do some cutting.
Go to muffler shop
Tell them "weld this in"
As a state inspector myself for Texas, if there is no check engine light and the codes have not been cleared, it should and will pass unless there's something else wrong. Now on the other hand, this will fail a state inspection if they visually inspect the exhaust system like they should, which most places don't. Especially here. I'll just pass my own shit lmao
Mason Holloway godsend
so are you saying this will pass inspection in texas??
Kamrin Delcambre yes
@arnulford66 Good to know. I've got some clogged cats that need a good cleaning.
Glad I don't have inspections
This worked for me, I gutted my converter and I only used one spark plug non fouler, worked great and gave my Jeep power I have never had before, thanks for the info, no engine light, more power, engine runs cooler and better gas milage, what a cool hack. Thanks for the info.
What Jeep?
Im trying to not get CEL on my 03 TJ
Try and find out
I’m also interested in what Jeep
Also interested for my 97 Wrangler.
Looks like we old jeep guys found this together😂
What happens if i delete my cats this summer and then i get mice in the winter
I had a cat fix the CEL once. She had 3 kittens under the hood, and I couldn't drive the car for 3 weeks.
That’s so stupid but I love it😂
Just did this trick for both plugged (now gutted) cats today and it works like a charm. 👌👌
Added bonus: my truck is now Anti-tailgater at stops and at open throttle. 😂
Edit: You deserve this Sub. Thank ya brother.
@@peytonhoward still no cel😎. Its nuts how great this worked out.
@@rob5598
Maybe the bulb for the “Check Engine Light” burnt out!?!?!? Lmao. Btw, that is how I always turn my “CEL” off is by just removing/unplugging the bulb!!! Worked like a champ EVERY single time that I’ve ever done it!!! 😂😂😂
@@DFWJon you cannot pass smog in California just removing the ck engine bulb
Nobody cares about California
bruh cats are worth money why didn't you just take em to the local catalytic converter place and get a straight pipe or just cut the flanges sell the cats and weld a pipe in place of where the cats were
You only need to add a defouler to the downstream 02 sensor. The upper 02 are measuring pre cat if you defoul the upstreams it will throw off your air/fuel mix.
That sounds like my truck. Ive changed everything on my motor. My exhaust smells bad. I put it on a machine. They cant find anything. My engine light is on. I should've left my cat on but i thought it was giving me problems.
Yes you guys have got to use some common sense the downstream only monitor the efficiency of the catalytic converter upstream is responsible for air fuel mixture
@@larrypotts564 exhaust smells bad because you remove the catalytic converter!
both attribute to the fuel trim, downstream calibrates long term trim, whats stored for closed loop
The only reason the downstream sensor is on the vehicle is for the computer to see that you took off/gutted the cat converter and to deliberately make the vehicle run like crap when it's been deleted in order to keep the Commies that run the EPA happy, and to force us "evil auto owners" to blow more of our money on useless bu11$hit at the parts store. When the companies first put cat converters on vehicles, they only used one O2 sensor, and those vehicles ran just fine that way. Look at the 1988-1994 chevy/GMC pickups, suburbans/tahoes/s-10's, etc.
I did this on my 1998 f150. Worked!! I always love it when people don't understand how my check engine light isn't on
+Jacob C hell yeah that's good
Hey wish sensor u put that adapter. I have 97 chevrolet 97 the ones going in the front or the ones goin on the back
+misaelgonzalez90mg back
Dis it make an idle noise before installing that.i got a ford
So will that fouled fit on the 1998 f150 o2 sensor threads
It has worked for someone in the past! Long before this video was first posted. Do it! Cheaper than a new cat.
but your cat is still clogged you doofus so you're going to be down on power that's why I get on it in my car every once in a while, to burn all the carbon out
No you just cut the cat out doofus
I did this on my buick and it worked...........Way better then disconnecting the battery and jumping around the car on one foot three times.......
Which Buick and year? Was it the 3.8? THNX
What size de fouler did you need?
I Did this several years ago and I learned that the smallest hole possible will work. Also you’ll want to seal around the original o2 sensor hole. As soon as that sensor starts reading outside oxygen. Check engine lights back on.
I have heard the anti fowlers work but never knew you use 2 of them. Great info here Thanks!
using 2 just lifts the sensor higher !
Just came across this video.
Why not use the longer foulers instead of drilling one and putting them together when you can just use 1 with our the drilling?
The longer one is the exact same size as these 2 put together.
Am I missing something?
Thanks
Exactly what I was thinking just get the longer fouler that's what I'm going to do my 2004 Rodeo if wasn't running rich because cats were cut off it would be running amazingly!@@mannynieto21
anti foulers are for old wore out engines that burn oil, so the oil dont drip on the plugs and foul them out. I used to drive 25 miles to work in a old 1969 pontiac temptest, the plugs would foul everytime i hit the freeway, I would go pull them all and clean them at lunch so i could make it home. Got some anti foulers and my troubles were mostly gone.
Yes that is correct however that has nothing to do with this video
Heres some more info on this as I was battling the cat inefficiency code for about a month on my 2011 Mustang GT:
The secondary O2 sensor measures the amount of oxygen going through the catalytic. The cat consumes oxygen as it converts NOx and CO into O2 and other gasses. NOx and CO are pollutants that it tries to eliminate. I believe that if the cat is throwing the P0430/P0420 code, it reads too much oxygen going through. Some people get rid of these codes with the defoulers and end up with a P2096 code. As I understand this happens quite often with this setup. The P2096/P2098 code is post catalyst lean code, which also means too much O2 passing through the cat, which happened in my case. What I did was simply use a third defouler on the bank 1 O2 sensor (P2096 code). Worked perfectly. You can try stacking the defoulers until the sensor reaches the optimal voltage. If you run out of room to stack them, they sell O2 angled extenders which is basically an elbow fitting to space the O2 sensor further from the bung.
I'm glade I just read this. I wouldn't have thought to further space it to manipulate the reading. Nice! You have to work on automobiles the way you make it sound simple.
Have you gotten a p0133 & p0153 before with no cats?
@@rockcaholic ...these codes indicate bad UPSTREAM 02 sensor......
After doing a scale measurment of your clip, you have use a metric 8mm drill bit. Cheers.
Say bro I think it worked did it on my crown Vic and it idles a lot better your a genius 👍🏽🙏🏽
What year and are all non foul the same size which ones would you recommend
Right on
Thanku! SOUTHERN MAN,ALOHA FROM HAWAII, DOIN IT ON A DIESEL N GAS E320 MERC! ALREADY HAD 8 NON FOULERS FOR A BUCK APIECE,NEED TO SELL THE CATS FOR 1000 BUX!GODSPEED BROTHER
Awesome. Thanks to all you guys who make you tube videos. Its such a huge help to so many. Thanks so much. Bless up.
No problem buddy help me out and watch some more and don't forget the hit the like button
This did NOT work for me At first. Had to add steel wool to the bottom one and worked perfect for my Silverado after adding it. Helped the truck run better and increased my gas millage. Thanks for the Video and keep em coming!
isn't steel wool flammable?
In some cases but it’s such a small amount anyway and it’s safe in the exhaust
@@JohnSmith-xx1lx are you asking about brillo pads or just plain steel wool? theres also steel mesh pads you can get that are a little thicker fibers than that of wool.
Anti-foulers are for engines that are burning oil and someone doesn't want to rebuild yet. The spacer removes the plug from inside the cylinder so the oil doesn't burn onto the plug tip, shorting the gap and preventing the spark.
+Charles Cain ok.... the actual use of them is irrelevant in this case
I've got an 04' Yukon 5.3 I just straight piped. I've always wondered how to trick the computer with the O2 sensors when removing the cats. My county doesn't require emissions testing so I don't need them anyway.
What i did for my brothers 05 ranger with the 3.0L was cut the cats open and gutted them and welded them back up. Truck still has the stock muffler but damn it sounds nice and runs good
or you could just install a resistor into the send and return wires at the rear o2 connector to simulate a lean output mix. This would have no effect on your fuel consumption since the downstream o2 is just a cat monitor. The PCM will not know the difference.
Jazzminne Shadowfang im planning to remove our plugged cat, can you please elaborate more?
+John Meister Dupa do what I done in this video and you should be fine
the downstream sensor(s) report a voltage signal typically of 0.01v to 5.02v back to the PCM (Euro and Asian will be 0.01v to 1.02v). The PCM is looking for a steady voltage signal and flags a P0420/P0430 DTC when it is receiving one closely matching the upstream sensor. The voltage return signal is varied by resistance generated within the sensor. If you were to install a resistor between the send and return wires to emulate solid signal return, say 500 ohms or so, to get the return voltage between the expected parameters, the PCM will see this as a "catalyst working properly" condition and not throw a fault.
Man that makes perfect sense. I got about 1009 resistors laying around, think I'll try them until I get one right. Thanks for this comment! God bless your soul!
this method costs no more then $5 if you have 2 cats and works on EVERYTHING anything OBDII it works on absofuckinglutely everything .. as for the resistor method ?? every car needs a different value resistor as well as different years of the same fucking car and you dont know what you need unless you google it from a forum if you guy them ready made your looking at roughly $25-$75 each for plug and play with cheaper ones might have to be spliced into your factory harness while the space method works on all ..if you need more clearance you can buy ones with 90 degree angles for a massive price of about $12 each ...
I will do this to my Corvette .. thanks for uploading such a wonderful video ..now I know that I gonna need 4 non foulers
Nice! What year Corvette???
Nice the C6 is by far the best Corvette for the money
@@redneckengineering7739 for sure bro ... I will never regret of having a c5 which was my first vette but finally I got my favorite the c6 ... Everything is about taste and I think the c7 lost the concept of Corvette but to each their own... I really love mine and as you said the best vette for under 20k is the c6 ... Where are you located??
Memphis TN u?
panzer waffen did it work for ur c6? i just recently dropped LT headers and im trynna see if this works to know if i can buy it or not
Great video! But for those that do this, don't forget to flush the memory in the ECU, several ways to do it, easy way is to disconnect the battery for a few hours, or disconnect - side of battery and run a wire from - to + for 5 minutes. Than restart and do the warm up setup as per vehicle, your car will relearn if any changes are made, most likely doing the cat thing will not change much if any, but it is always a good thing when you change anything fuel or electrical wise that effects the engine.
I can't speak for other cars, but my Explorer and Cherokee both benefit from an ECU flush when something fuel or ignition is changed@@user-gi8kg2yf1j
My car has 4 cats and 2 dogs
Daniel Pettis lmao
Daniel Pettis My car have 1 cat & 4 dogs "tough dog suspensions" lol... It "shocks" me whenever I'm driving, they go up & down. Good Dogs.
+Rojelio Castillo well come down there little bitch
Daniel Pettis did you watch the other video to see how to gut the cats?
+Steve CVNT Niko yeah i know
This works like a dream in CT and NY
Ny is ridiculous. I had 10 days. I didn't know that the cat was removed and had a straight pipe. I had to go to Pablo im the Bronx. Took a pic of my registration. Passed it through the DMV. Bam sticker and one less problem for a year.
You deliver excellent content to your audience. All of your effort put into creating this video is much appreciated. I'm truly grateful for your help!
Worked great for me, after adding long tube headers with Y pipe no cats on my 06 Silverado!
The non-foulers worked for me. I installed them and at first, I didn't think this was going to turn my light out. However after driving it 100 miles, and driving it a little hard, the light went out. I passed the inspection test. A $6.00 investment! However most videos I have seen on TH-cam, the guys put the NON-FOULERS in the vice and run a 1/2" bit through the threaded side of the NF taking the chance of hitting the threads. Turn it around and put it in the vice with the small hole up. Gradually increase your bit size, (making sure to hold the drill level) until you get it open to 1/2". You don't need the crush washers, except the one between the first non-fouler and the 02 bung.
For future knowledge
Unplug your battery for 5 minutes
Your saved codes will be gone
@@CraneGuru ...and then will return soon after unless you do somethng like this vid.
Hey man I have a 2008 mustang gt catless x pipe. I have 3 o2 sensors on the pipes. 2 o2 sensors on the passenger and 1 on the driver side. Which bung would I put the non foulers on? Just the downstream o2s? And how many non foulers would you recommend to put on 1 o2?
I figured it out you only out the foulers on the downstream ones
Yup. In my state, I would get a big fine. Here, it is better to just replace the cat with a cheap after market cat every 3 or 4 years. But if not required in your state, looks like a workable solution.
Gandoff2000 what state are you from?
I'm going to guess that he has better performance with the cat removed
In my state the state of MA if your vehicle is 15 years old or older then you do not undergo an emission inspection just a safety inspection so the cat's, egr, and smog pump are not required
You can get a dummy catalytic converter. It may look like a catalytic converter, but there's no baffles inside of it. They have a pipe running through it.
Thank goodness for Oklahoma. No inspections of any kind, no emissions enforcement. You can run straight pipes with police all around and it's no issue. I hated living in a state that gets in your personal business like that. I remember when it was like that here and I was thrilled when they finally did away with inspections years and years ago. They want to tell me what to do with my vehicle that's fine, pay for it and I'll set it up how they like.
I think the might me the most American title and thumbnail ever
Hell yeah brother
3:25 tells me that it's on backwards but I get it.
I noticed that also but yeah we get it lol
Saw the same but, understood as well .
Yeah... I was thinking the same exact thing. Did he watch the video and go...Oh shit let me redo that one there!? But yeah we do get it. Dislexic info, but good info Lol.
Good idea man! I know that all the o2 sensors function according to tempature. So as long as they are with in the correct tempature, they will send the enough voltage to the computer.
Yes just make sure you do it to the correct ones
Nice job. This is what we do in our cenre for getting red of check engine light. Have you ever heard about programming ECM for USA FJ Cruiser to change the vehicle specs. It is like changing CAT configurations so that we tell the vehicle not to cosider trouble codes those come because of CAT issues.
Nice... you might have saved me a lot of money. I just ordered some 😎
Great job! My honda Ridgeline gave a P0420 on bank 1 so I put an anti-fouler on the top of the cat which is bolted directly to the motor (it has an upper and lower). I cleared the code & drove it for 20 miles and got another CEL for P0420 below threshold. This time I put an anti-fouler on the lower one, hopefully that did it the trick. Truck has 145,000 miles.
How is this working for you Kenneth?
@@RyanTinger still has the same problem.
@@kennethwise7108 Kenneth, thanks for your response, I'm not going to bother with it then.
@@RyanTinger gonna try this next, seems to be a little unorthodox but seems to have gotten great results from others.
th-cam.com/video/5icTmYItwiE/w-d-xo.html
@@RyanTinger I should note that I have replaced BOTH Sensors on this particular "Bank" and cleared the codes yet still got the "P0420" code. But since I only drive this vehicle less than 5k miles per year it is exempted from smog testing which kind of works in my favor
Your oil pressure gauge is probably due to a bad oil pressure sending unit. If your needle goes down when you turn your truck off, then pegs when you start it, it's the sending unit. If it doesn't move and stays pegged, it's probably the stepper motor behind the gauge. This is what happened on my 2004 Yukon. Not really hard to change, just gotta rent/buy an oil pressure socket and reach back there behind the intake and replace it.
It is the gauge cluster like I said
No offense but you reminded me of Andrew Luck, thanks for the vid I am currently in the process of a cat delete on my 04 tahoe
Did it work on your tahoe? I have a 2002 trailblazer that has some converter issues and want to know if this hack will work without issues before tearing the exhaust out
Did it work on your tahoe? I have a 2002 trailblazer that has some converter issues and want to know if this hack will work without issues before tearing the exhaust out
Still need to gut the cat
@@redneckengineering7739 so both need to be drilled or just one?
Ended up being a different code so they did end up working on my 08 Nissan Titan. Thanks Bro.
+Cody L oh cool man glad it worked
You do this on the downstream o2 sensors right
Yes
You were talking about the oil gauge. On my Suburban that happened to me and it was my oil sending unit. About two years prior I had the motors in my instrument cluster replaced by company in Richmond Virginia and everything works great.
+Marleen Viola yeah i need to have the cluster re done
i tried this on my ford focus st225, its a 5 cylinder turbo you did not get them in the usa you only got the later year model of that car, i installed the decat pipe on the car and used the non fouler with the o2 sensor and still had check engine light, reset the ecu many times. i then got a lamba spacer with a 90 degree bend in it and put the o2 sensor on that and still had a check engine light. i packed the spacer with wire wool and still had cel for high temps detected. so i put the cat back in place and the cel went away, for some reason my ECU must be very sensitive to the heat threshold it thinks is acceptable before giving a cel. if i do install the decat pipe again im going to have to get a tune like you said to turn off the code.
You didn't use any ospho and high temp paint to protect the surface from corrosion? I'm guessing you live where they put salt on the roads
So far so good🤞 first 30 min drive after cutting clogged cats out. I installed the defoulers and cleared codes.. zero cel currently present- 2010 4.3 gmc sierra
How about now? Still good?
worked for me ..2009 dodge caliber
What is this, some kind of honest channel?
Sure
@@redneckengineering7739 then i daw the money in the wall thumbnail....
What are you talking about
@@redneckengineering7739 Fr😭😭
Wouldnt the rear o2 sensor read lean then?
Yes and that’s exactly what you want to happen. Less O2 read at the back sensors than the front.
for the oil pressure issue, pull out the oil pressure sender and under it down in the hole is a filter. Small filter that you can replace for less than $5. Found this out after chasing an issue with oil pressure! After changing it I have had no problems with oil pressure.
That’s not it or it would throw a check engine light for no oil pressure
Module Masters! Cheap company who rebuilds clusters. Very fast and reliable.
+Cody Call thanks
Yes, Module Masters is trustworthy, DO NOT use Module Experts in Jacksonville,FL. They have 50 complaints with BBB for multiple issues and you will regret it! I did...Module Masters has no complaints filed with BBB. A+ rating
Sold the truck not a prob now
Appreciated that's a big help for what I'm trying to do. New subscriber to the channel. Thanks for sharing with us 💪💪💪💪
To get this to work all the time, pack the end of the non fouler with stainless steel wool
Lima Bravo what does that do?
@@sethjordan8917 I'm guessing it act's like a mini cat so there's back pressure going to the sensor. If there's too much flow or not enough heat engine light might come on. 🤔
Do you need to stack 2shorties or can you use 1long one like I did??
Good to know man, im gonna git-er-done! Thanks!!!
It will pass some state inspections depending on the state it in Missouri it will because they don't check the exhaust in California they check all of the pollution control
I remember in the 80s, ever GM car I had it was my goal to get the orange check engine light off. Now ever car I get in has some normal orange light on that drives me nuts.
Put in a blue color bulb : )
Your keyboard missing the “y”?
Who’s
@@redneckengineering7739 Gurgmanj was pointing to the repeated "ever" vs "every" typos.
@@pauliej4208 he literally typed the word "MY" before ever. It was clearly a typo.
Sir your gauge works... when it pegs to highest pressure most of the time it’s actually the oil pressure sending unit ...the $6 part that tells the computer and gauge the oil pressure... just replace it
I don't know why you people continue to argue with me it is the gauge cluster and is showing 0 not the highest if the computer was reading 0 it would say low oil pressure on the display
Actually now that I remember it did show pegged out then but now it reads zero these trucks are known for gauge cluster issues the stepper motors go out
You can buy a kit from amazon and eBay with the stepper motors and a soldering iron and a solder vacuum tube thing basically everything you would need to do the fix it took me my first time doing it only 30 mins to pull cluster swap the motors and reinstall the cluster was super easy when you go to pull the needles off the motors use a fork and they won’t break good luck
"I'm not gonna tell you what size drill bit"
*Picture says 1/2in bored non fouler
Use what's in the picture
Thanks :-)
1/2 inch is the current sized hole in the spacer, not the thread size
I just picked up a 94 Chevy 1500 Silverado.
The guy cut the cat off and occasionally the check engine light comes on.
Wouldn't it stay on all the time if it was the sensor?
Generally it's when I hit speeds above 70.
Thanks from Ga!
That is not why the check engine light is coming on it probably has a random misfire or something like that maybe a vacuum leak but not the cat I don't even know if there were a secondary O2 sensor and 1994
i have the same truck as you but darker with cat deletes i used to run 2500 rpm at 110 km/h (70 ish mph) down the highway. After the cat delete im running about 2150 rpm @ 110 km/h (70ish mph)
That’s not how this works lol.
I never changed my gear ratio it’s always been 4:10 gears
you turned the overdrive on :D
Just maybe you went fast enough to engage the overdrive or lockup converter?? got nothing to do with cats
+Peter datechmen maybe dogs though
to reset gauges back to zero, put the gear into drive (foot on the brake) and try to start it each time it will try to reset itself (move a little to the back), start it again before it tries to move forward... it will move again to the back just a little... hit it again before it turns... etc
False
08 GMC Sierra. Worked for me. Going on 2 months no light.
Edward D
What size mm were the spark plug defouler, did you get 14mm or 18mm?
Did you only do down stream? Somebody in comments said just need to do down stream
It’s common sense people only down stream
I sent my instrument cluster on 2 vehicles several years ago to mandigital and had them replace the stepper motors on them, and never had any problems after that.
Put tape over that light lol
Daniel Pettis if they get in I️t for emissions and the light doesn’t flash pre-crank with all the other lights, that’s a red flag.
Put a blown bulb in there so you can say it must have blown on the way there 😂😂😂
Then you can pay your fine and still leave the blown bulb in hahahaha
Are you sure you can't change the balls on these clusters
Now that might actually work
I just tried this and it worked great. I only used one of the non foulers because of how little space I had to work with. Just using the one still worked.
@We Are Anonymous Yes you do still have to drill it. A 1/2 drill bit works perfect. It only takes a few minutes to drill it out. You will want to clamp it in a vise ideally, when you drill. But be carefull when clamping it down, the metal is pretty soft on these. There are videos on TH-cam of how to drill it out if you are curious what the process looks like.
Because my engine light came on and it read po420 code and i tried the spark plug None follors did not fit on the o2 sensor.
+Billie Alonzo yeah you're doing it incorrectly that's why you use this on the rear O2 sensors if you removed the cat that's it this isn't to fix an O2 sensor code
Why would you do it if the cats are still installed?
does the fowlers go on the up steam sensors or the down stream sensors?
+Greg Lyles down
thanks man
He's letting the Cat out the 💼!!!
+ElroyJosephJenkins JrTheThird 🤣🤣🤣
By adding steel wool inbetween the non foulers it will take the check engine light off
Man you remind me of a very good friend of mine in college...
Well that is cool I definitely did not go to college though
In 1970 my Uncle was a mechanic I bought a call for 50 bucks the engine was bad Oil was getting past the rings That's what these are designed for Then Got drafted into the army With the money I saved got myself a new car Back in the day you could buy a new car $3000
You said it wont pass inspection? Love the part where you said "burn yourself & drop the plug" lol
+Saby Soto if you have inspections you will fail but I don't have them here
it serves a purpose for those of us with headers an no cats, but don't want a CEL or if a tuner wont remove the CEL.
SRT8/power 6,4 you dont know much about inspections now do you? The computer NEEDS to read emissions as READY. Has nothing to do with having a fault code. Fault codes can be turned off. The computer needs to be tricked into thinking it has the restriction of a cat or the cat and 02 sensor will not read ready in the system.
R35PECT i was NOT referring to exstention o2 to trick pcm ! Lol but in my state if u do have codes that r NOT fixed nd just cleared !! When u go to the inspection , theyr computer will read all ur BS !! Nd they will tell u , ur car has faulty codes that has been erased!! So yes i no bout inspection nd bout tricking the pcm of car very well !! No need for ur 2 cents there buddy boy!! U aynt no savant , trust me when i tell u
SRT8/power 6,4 listen kid, you have no clue what you are talking about. Many cars have codes that won't pass because of a problem. They repair the problem and clear the code. So you are telling me they won't pass inspection after that? Lol. If the emission system shows all systems ready they have to pass you. Having prior codes has zero to do with passing. Ok kiddo? Get the point now? Are you done being clueless? You clueless little bitch.
Does this have anything to do with keeping your exhaust smell down? Even though my catalytic converter works? I installed a cheap catalytic converter but I still smell sulfide because I was told it was a cheap catalytic converter. I was just wondering if this would help to lessen the exhaust smells? thank you
I tried this today. I got the 42009 and used the 1/2 bit and my sensor still don't fit so I try the next size 5/8 and it broke in half. My truck is a 1999 Silverado 4.3 v6. (Help) please
this is because you do it with strenth...try easy next time...you must be veeery careful and try veeery easy to contact with your drill...the problem is very known for me...if you make a hole and try to make it larger your bigger drill will use only its corners and it will cut in and break off...this is why u need to make contact veeeery easy with low to medium RPM....when you drill metals you never use high RPM...remember that...i hope this was helpful...good luck
Also as we live in the 21st century where we use the metric system 10mm is probably better then use a dremel or measure exactly and use the right bit but use slow speed and torque to start
+Jigzlyfe the US does not use the metric system most things are still standard but you can't get metric things as well
Johny Hernandez take it to a professional!
It will still pass as long as the readiness moniters are set and the CEO ain't on then guess what, it passes inspection and emmissions. This guy is fucking stupid and spreading his stupidity like wildfire.
I have a 1994 F-150 5.8L that I just did a smog delete on and am changing the stock exhaust manifold to full length headers, removing cats, and having true dual exhaust put in. I am guessing I will need to have a piece of pipe that has the threads for an O2 sensor so I can try your method.
Yes
Awesome.
+sixtyfiveford thanks it works
Good job 👍 brother... Let's see more repairs! I would like to see engine removal and install 🛠️🛠️🛠️
I’m from Memphis too 👋🏽😂
Edgar Correa me to
901
+Matthew Craig hell yeah
one thing to note using this method as both upstream and downstream sensors HAVE got to be fucking working properly if one of the sensors is bad you need to replace it before this will work
all I needed was the dill bit size yet that's all u didn't tell lol.. I heard it will pass inspection , visual they could see but throw them $10 or go to a guy u know n u should be fine, make it look old and rusted they may never realize
Cool, glad its worked for you guys... anyone know if it will work on a european diesel ie. Peugeot Citroen Volvo Ford UK?
I love me some Tennessee!
Only drawback is. The rear O2 checks CAT temp, if it’s not up to temp it will add fuel to raise the temp so what will happen is very poor gas mileage.
Give your mom a kiss for me thank you for the help
on each cat do I do this on the upstream or downstream o2 sensor?
Been doing this for years however watch your video once more ... you screwed the end that you drilled a hole into on the wrong end ..yes you did watch your own video you put the one with big end at the end so that it screws into the converter pipe and the other end which hasnt been drilled will refuse to let your o2 sensor to be screwed in ..
and this method also works if you replace a factory convertor with a high flow performance one that triggers the fucking CEL
I'm pretty sure the only reason he screwed them on the way he did was because the one that he drilled was still hot and he didn't want to hold it.
+Meto Meto was actually paying more attention trying not to mess up what I was saying LOL it's hard to talk to the camera by yourself
I have a 08 Yukon 5.3 have 02 issue could i do this to the down stream one without knocking out the honey comb inside the cat
Go Vols!
did u feel any power gains at all when removing the cats? I have the 98 gmc 5.7L vortec with aftermarket exhaust and headers, headers didnt do shit for power, i am hoping removing the cats will
If they arent long tube headers then it isnt going to d9 anything anyeay and to take advantage off all that u need a custom tune
I have a 2004 hummer h2 with a 6litre vortec im about to delete the cats , my question is what MM non foulers did you get ? Iv seen 12mm and 18mm non foulers?
Nevermind good sir I seen your 1/2 inch picture thanks a ton I hope this works
+Ryan Riggins good deal
Didn't work on my truck, gave me a code for bank 2 sensor 1 inefficiencie slow reaction, or something like that. I ended up just using an $80 cat from the auto parts store and fixed my issues. Congrats if this worked
This is more for if you remove your cat not if it's messed up
@@redneckengineering7739 Yeah, I had my cat's removed. Although I will say, my engine light stayed off for about 200 miles. Long enough to get it to pass state I.M. but then got that code and decided to just put cats back on, which I kinda like bcuz I can run without a muffler in line and it's not to loud, without the cats I had to have a muffler bcuz it was to loud in the cab anyway it is a good thing if you can get it to work.
These are put after the catalytic converter tank right??
I have 4 on my explorer sport. Could I just gut them and leave the sensors plugged in normal? Or would it still throw a code? I have a Flomaster 40 series and I just don’t think it’s as loud as it should be for having that exhaust.
I bet that thing sounds retarded
I have a 2000 tahoe limited check engine light is off but I can hear a raddle coming from Cadillac converter if I do this will it hurt my engine or change the engine performance of the engine
No
@@redneckengineering7739 thank u
If I don’t care about my check engine light being on do I need to do this in my 98 k1500 or will it have running issues?
No problem at all
the epa is going to come visit u at your chop shop. lol😂😂
Oh shit I'm terrified
They aint coming to my house hahha😂
Hey from Bedford county here.
+Justin Cooper wheres that at
Recon if that would on a 18 SS camaro to shut off the engine light?
I'm getting a code p2069 post catalyst fuel trim system running too lean bank 1. im catless, but wouldn't i put the fouler on the o2 sensor closet to the engine since it says bank 1? I'm new to this car stuff.
No
Doesn't the one you drill a hole through go on top and the O2 sensor screws into it? I didn't know if you meant to put them that way or not?
Yes it will only go one way