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- เผยแพร่เมื่อ 16 ก.ย. 2024
- THE KNOCK SENSOR WILL NOT CHANGE OR IMPROVE THE RUNNING OF THE ENGINE EXCEPT UNDER RARE CIRCUMSTANCES IF EVER. But if its toasted it makes it impossible to analyze other codes since it will throw out extraneous codes. If the code is on it will not pass emissions is the big thing. Put time into trying to get a couple inches out of that wire before cutting.
Thank you so much, Jeff. It took me a while; just couldn't bring myself to cut that wire, but your comment about the guy that climbed Yosemite without ropes was just the encouragement I needed. Your presentation was accurate and clear and worked on a 2000 Nissan Quest. Cleared the code P0325 and now we're all happy.
hi keith when you did the bypass did the code disappear right away?
@@doriansmith3113 You have to clear the code with a scanner.
Thank you for the very detailed video. Not sure why this job has created so much hesitation in my mind. However, part of it is the false information or partially correct videos. This one shows everything with great detail!
Thanks again! I will do this either tomorrow or on New Years 2023!!!
Happy New Years!!!
You did a very good job explaining everything you did with more than adequate details in your text supported by the photos. I don't think anyone could have done a better job. Thank you Jeff C.
Just did this work around to my 2000 Nissan Quest that had error codes pointing to the KS. The engine during idle was always "hunting" for an idle speed. Relocating/replacing the knock sensor has greatly improved my old van. No repair shop ever came up with this work around. So happy you pointed to the #6 wire as the one to tap into. Everything went smoothly and was done in less than 30 minutes!
YOUR WELCOME--glad to save people the money. Shops quoting prices of a thousand or more is scam. Not only that but once they get the vehicle in--they know good and well they can get $2000 by saying everything else is wrong. "Oh and uh oh yeah--we noticed this rubber hose has a split--thats $300 more or we wont proceed with the knock sensor fix" makes me mad even to talk about it
Thanks for the video. I just relocated the knock sensor on my daughter's 1999 Mercury Villager and the code went away. Hopefully, it will pass inspection now! It has almost 300,000 miles on it and I have worked quite a bit on it as needed.
Thank you so much for this video! Got all the parts and within one hour no more KS code or rough starts. Appreciate you!
thank you greatly. . I went to a local junk yard and took a few KS off a Nissan motor and clipped a few harness connectors .... so far it costed me $3 entry fee lol I'll post a comment on outcome tomorrow....thanks this video was a lifesaver on this van I just picked up
yes let me know how it goes but it will go great. I was worried about the connectors being as bad as the old ones plus the trouble but getting the correct connector or robbing them from a vehicle of course is easier. The knock sensor generally wont affect the running of the vehicle much--but it triggers the other codes making it impossible to diagnose whether the items are bad or not. Also check your CRANKSHAFT POSITION SENSOR--and plug in. If thats bad it will make the van run boggy The sensor itself is solid state and is not an item to really go bad. It will be the connector.
How was the repair since then?
What kind of Nissan you take sensor and harness from
Van is still going strong--has never run better a year later. That knock sensor code caused a nightmare for years. I kept getting codes such as "short somewhere maybe in transmission?"--and my lights and blinkers would do strange things then go back normal. My headlights would act dim like they were dying then come back to normal. My turn signals would stop working unless I hit the 4 way flashers then shut it off then they worked again. I also had issues that the battery would bleed down while parked with a new battery. I had told people for a couple years "it seems like something is shorted someplace but I cant find it" IT WAS THE KNOCK SENSOR
Holy crap bro. Thats whats going on with mines! Hope this hack fixes it all?!
Another guy posted a similar video and also pointed to the same connection of wires to the KS you did, So I am going to try. Hopefully it works. I have a 1999 Nissan Quest with that same code. The car runs choppy when idling at a light and temperature of vehicle is lower that the middle of the Gauge. My mechanic wants $275 to change that sensor since Nissan decided to bury the damn thing under the intake valve (idiots). My mechanic will have to kiss that money good buy for now. Thanks for the informative video and the help. I really appreciate guys like you that put these videos out.
Currently working on this very project. I was able to find a KS with the wire and connecters included for just under $16. It included a dummy ground wire that I just removed, and clipped the useless plug off the end. Unfortunately the included wire is a little short, so I'll have to make two connections, but this save me the hassle of modifying a plug and trying to seal it.
WHERE did you find them for under $16?
Worked like a charm I actually cut the front junction box wire #6 instead of the back, had gotten a knock sensor relocation kit on amazon ($15) that said it was for quest but was not the right part. Once I got the right sensor amazon ($8.99) and got the recommended pigtail from O'Reilly's ($7.99) I wired it up and the code was immediately gone. TIP for anyone doing this if you have utility knife dont cut up your pigtail housing just cut off the fins on the sensor and cut down the housing will make the sensor fit snuggly in the pigtail secure with epoxy.
Okay, I just did this and it works. Only I did it from the FRONT of the connector which is much easier. Just cut the third wire down from the top, which is the WHITE wire. It's right below the red wire. I used a butt connector. Put the new knock sensor in the space shown. No more trouble code 325.
Hey all. I have a 1998 Villager and had a really hard time finding a guide for the relocation on the first gen vehicles. I ended up reading the manual to find the correct wire to splice into. I have a writeup on my blog: rotf101.wordpress.com/2019/01/14/1993-1998-quest-villager-knock-sensor-relocation/
I have a 1996 quest and am also having a hard time finding a suitable location to mount the new sensor. I have read your link and looked at the photos, but it just doesn’t compute in my mind. Do you know of any other locations that I can mount this stinking sensor? Thank you
@@carlorocky To be honest, find any place on the block with an unused thread, and it would probably work. I installed mine between the ignition coil and distributor cap.
The knock sensor is basically like a microphone, and if there's a good mechanical connection to the block, it will pick up any problems with the ignition timing.
Edit: I no longer have this van, so I can't get new photos.
Hay, Jeff, if you are their, I need help brake pedal switches, my brake light stay on all the time, the two switches at the brake pedal are good but has no stops and are out of adjustment, I need a good fix for this so brake come on only when pushing brake pedal.
Thanks
Thanks to you I just passed smog thank you so so much.
Thank you Jeff. I will try this fix on a family friend's 2000 Nissan quest with P0325.
worked perfect ...very simple to do...looks oem.... my only issue was I cut and crimped failed ..and only had a lil piece of wire. make sure u leave alot of slaK wire to cut from the harness or unless u will have a tight wire nut barley holding ur new KNOCK SENSOR wire
CONGRATULATIONS---how many seconds did you pause before you snipped?? For me I stood there about a minute--and finally snipped. I intend to improve the video showing that the wire is deeply buried and you have to pull it out with something and cut back on the big conduit to get as much as you can--even then reach in and cut jabbing the cutters in as far as possible and simply abandoning the cut butt of the old wire--it wont touch anything anyway.
report back some time just to show people the code instantly goes out. Of course a persons vehicle could have other problems. But the fix is good as gold as far as the knock sensor --it totally removes it from the equation for about $25 not TWO THOUSAND to take the engine apart.
I will be shortening the video and updating it so at the start it warns people that the knock sensor does not affect the running of the engine and it will not make the engine run better. What it does is makes the code go out plus several other codes so that parts dont get replaced that dont need it such as I did over a period of years. Of course if the sensor is bad as mine was--it gives so many codes that you cannot figure out real issues with the vehicle. It also of course makes the vehicle fail emissions since the test cant show up any codes. I will also update the video to show that a person could in fact simply splice into the wire on the FRONT of the harness plug in. The harness is not electronic--the knock sensor wire just passes through it. I likely will leave this video intact since there is alot of good info including in the comments that could help someone Main thing is--KNOCK SENSOR DOES NOT AFFECT THE RUNNING OF THE ENGINE. it only adjusts timing under very rare conditions such as towing a boat up a hill in summer with bad gas that got put in. Other then that under normal running it does not improve the running of the engine unless knock or ping develops--which is quite rare
Hey Jeff, I am getting ready to do this. Are you 100% sure the wire can be cut in the front of the harness? Seems much easier that way.
virtually 100% certain--actually I felt stupid that I did not do that--however since I didnt I cannot testify to it. Im certain the wire simply "passes through"--that nothing takes place inside the connector.
also the knock sensor was gotten at car parts dat kom its sitting right there for $13. I also called and discussed with them at great length that the 4 sensors that come up--are in fact identical factory sensors. It will however take about 4 or 5 days till it arrives to your mailbox. It arrives by normal mail in a puffy envelope into your box
How do I send you some money for your help? It was amazing and I fixed my mother-in-laws van perfectly. I am the new hero :) Entire job cost $76.00
If you relocate the knock sensor, how does it work properly? Knock sensor is made to balance the detonation in the engine. When you relocate it, how the knock sensor suppose to work?
i have two villagers and the light works very well in both. have not paid any attention to them just drive the car. fortunately where i live we do not have to pass the emmision test annualy. as you stated it does not effect the functioning of the engine. it runs very well. the lights were added into the system so mechanics and shops can swindle money out of your pockets.
Knock sensor if bad will greatly effect driveability and performance of the car and engine.
16 or 18 Gauge wire can be the standard speaker wire?
I tried to buy the pig tail but there computer doesn't show the part. I went to advance auto. Is there another part number for the pig tail?
A BAD KNOCK SENSOR THROWS OFF THE VEHICLES COMPUTER CAUSING IT TO CONSTANTLY ADJUST YOUR FUEL MIXTURE WHICH KILLS YOUR MILEAGE AND POSSIBLY OVERLOAD YOUR CATALYTIC CONVERTER, WHICH IS MUCH MORE EXPENSIVE TO REPAIR.
That being said, I made this change about two years ago. It's an excellent "work around." My only suggestion is to go with the more expensive Knock Sensor.
I used a $10.00 Knock Sensor I bought on Amazon because it was much cheaper. Today I got the P0325 code again. (Knock Sensor malfunction) I'm on my way to NAPA to buy the $50.00 sensor. I'm guessing/hoping it will last much longer.
To clarify I only need to connect one of the KS wires to the cut in wire. I don’t need to ground the other wire under the distributor? This is what I’m seeing in the comments.
Changed sensor as shown. But can't get code to erase from computer. Any advise on this matter.
Great video! I know this video is 3 years old but I'm getting ready to do this to a 1999 Nissan Quest. Just to clarify,you used the head cap screw as a tap into the hole before screwing in the KS? Please reply as soon as you can. Thank you
I'm going to try this out...I hope it works.. and nothing fails... looks so easy
your going to be pleased. dont forget I dont know what your vehicle is. I can tell you now if its the same vehicle its going to work perfect and you will cream your jeans
actually you only need to run EITHER of the wires and connect it to the cut wire--however I put keep track of the wires so the person will work with confidence that everything is hooked up the same . The sensor is grounded through the computer. But the ground wire under the distributor bolt looks good and professional. Some people may feel "how do I know the signals may tickle the distributor??
I'll let you know if this works for me tomorrow. Got this minivan and been trying to pass smog, so this bypass seems easy enough to accomplish.
Jeff,
After cutting the wire, which end needs to be hooked up to the new KS?
actually it does not matter which wire--however i did point out which wire in 2 different spots. Also the ground wire--that can be snipped off and thrown away since the sensor is grounded to itself when you bolt it down. That being said it was safer to show in the video to simply hook the wires up the same way or else it would cause confusion since people would be worried. The knock sensor is a microphone -a small crystal that creates micro voltage from vibrations--actually makes no difference when wire a person attaches to the cut wire.
Hey Jeff C I'm currently working on this same KS problem in 2021 on my 2002 mercury villager. I've cut into the (number 6) wire on the harness and wired it to the (left wire) aka (left side terminal) on the KS . Then I took the (right side) (ground wire) and grounded it. I still have the code. But I never changed the sensor itself...could my KS be bad and need replaced? Because all my wiring is correct. If u respond I can send photos etc etc
I followed step by step of the procedure but the check engine light did not go away as it came on when the knock sensor Po 035 came on after timing belt destruction.
Ok so I'm fighting a friend of mine because I say we can do it this way..his says we have to connect it on the other side of the engine on a 2000 Villager. Is this a relocation? Because I watched the video he had and the guy goes to the right of the engine, you kinda take it straight up and hook into the wires there🧐 I'm jus confused on which way is right for my van we can't do emissions test because the check engine light for knock sensor
Is it different on a 97 mercury villager G,S
Hey I had a question my dad replaced all sensors on 2000 mercury villager went to get inspection said he hasn’t drove around enough but o2 light came on after he left
Hi I just got a Truck that have the same problem I need help can we communicate.?
For helping those less savvy of the group, why can’t a guy just buy a new sensor and plug it in? Wouldn’t that fix the issue of a bad sensor? What am I missing?
Because its buried and impossible to get to without removing the intake manifold.
I did it perfectly as directed and I’m still getting the code. Can’t understand
if it is a real problem with you, a piece of black tape over the light works just fine but i never pay anyattention to the light only the running effieciency of the engine
WHY IS THE ROOT VIDEO MISSING FROM MY CHANNEL LIST OF VIDEOS? This one does not show up.
i find it in "uploaded videos"--but it does not appear in "creator studio"--so that I can edit out some of my dumb narration. anybody know how to bring it back to life on my main list of videos in creator?--its the correct account.
Jeff on the connector can you clarify the exact pin number as the image shows pin #6 others are saying pin #37. Same exact vehicle as your video. Appreciate the response.
no--its the one I showed trust me. Sorry I didnt spot this till now.
Whats the new ks part #?
Jeff does the connector have a specific part number or call number I should look up I can get the knock sensor easily but I want to find a good price for this connector. Thanks for the informative video!
I got the p0325 code I believe is what it was on my Mercury Villager, not sure if you were experiencing this but the rpms were bouncing from 900 down to 500 sporadically.
What is the disadvantages of bypassing the knock sensor?
I have a 20000 mercury villager 3.3 I did this and my dash caught fire dont do it it doesn't work this guy cost me 5 thousand dollars dont listen the only way to replace a knock sensor is to pull the intake off and get to the factory one pull it off and do it right
Nonsense.
You apparently did something wrong dum dum..