Love your channel and the knowledge you share. To do a visual inspection only takes a few seconds, often times you can accomplish this faster than you can boot up a scanner or oscilloscope. In fact almost every service manual will tell you to start with a visual inspection. You may just find a wire rubbing against a crank pulley. I have fixed MANY vehicles with a visual inspection that took less than 10 seconds. Simpleton? No, I like to call it efficient. If my flashlight and eyes don't see anything during a 10 second visual inspection, that's when diagnosis begins. Anyhow keep up the good work and spreading the knowledge. Congrats on the promotion.
+Auto Fix Pal It is more a matter of logic and reason than practicality. Doing a visual inspection that requires removing splash shields, lifting car, And really having no idea what you're targeting seems ridiculous to me. At least now I know what to look for exactly. Also you have no baseline. On ANY car you will find SOMETHING. But there is no scientific baseline to determine what you found was the cause and had effect as an independent variable. Any way you look at it, starting a visual without foundation is always unscientific by definition. This channel is about scientific approach and procedure.
+Schrodingers Box AFP is right. We had a car that wouldn't start and it come up with crank sensor fault. After visual inspection we found out that crank sensor securing bolt was loose. 5min diagnosis.
+Schrodingers Box not suggesting that you start removing covers or parts. But i quick look under the hood with a flash light can often lead you in the correct direction. You stated Not all vehicles will show cranking RPM on the tachometer, YES this is true. But yet it was worth the time to check because it took no effort and can lead you in the correct direction. You can't always trust scan data either, it's slow and its processed. The best way to really see what's going on is with an oscilloscope scope. Scan data is especially slow when your monitoring more than one PID at a time.
+Auto Fix Pal You're missing the point though- when you find an anamoly on a visual without defining baselines, how do you know it was the independent variable? That's my point. It's unscientific, you do agree, right? This channel shows scientific approach only.
+Gregory May Yea I understand but what I am saying is it is UNSCIENTIFIC. I am not debating Practicality. It is simply that it is an unscientific approach by definition is all.
Easiest way to check for short to ground without fancy tools is to unplug the PCM then run a wire from the relevant terminal through a 12v21w bulb to battery positive. If the bulb lights bright you have a short to ground. Leave the ign off. You can leave this hooked up while you are moving wires around to see if it flashes on and off. Because the sensor normally runs from 12v this will not harm it. If the light is on and goes off when you disconnect the sensor the fault is in the sensor. Hope this helps. I like your methodical approach rather than just replacing the part indicated by the code. :)
I'm very intrigued, pun intended. Also, congratulations on the promotion!! You're one smart dude. Love the scientific approach to everything. Thank you!
Well, I would've said maybe get a girlfriend but I really can't pinpoint what gender you are. You can't assume anything these days... As far as "generating income" that wouldn't be a great idea with respect to a girlfriend.
To rule out a quick short to ground from the power feed without unplugging the CKP 'B', cut that wire and see if you have 12v from the PCM. You could also run a 12v source to that circuit from another as a temporary fix if the cost of the PCM is not within the customers budget. Love your video's and keep them coming.
+Schrodingers Box i need to learn how to read. I never read your comment fully mentioning a continuity test. But yes, you can also run that test. Sorry about that.
thanks! i recently put in a NEW (but bad) CKP sensor and its apparently shorted internally- screwing up my fuel level gauge, ignition coil/ignitor(?) and setting off a host of other selonoids- et al! I cleaned all grounds, rebuilt my fuse box, new ECU, cleaned everything........no changes UNTIL i just now decided to swap back in the old CKP sensor. All the electrical clicking, etc went away immediately and Im not going thru the KEY RELEARN process for the new ECU
+Dr. DietLemonT Hardly lol. Pretty much 80 to as much as 120 hour weeks since February. It's been hell honestly. Man it was great to take a breather and finally focus on something else. sure missed you guys!!
Dude!! I was gonna drop you a PM tonight to see how things were going! Glad to see you're still with us! Congrats on the promotion; that sounds like it's gonna keep you super-busy! If you're wondering what to do with the gobs of money you're making now, I'm open for donations! ;D Man, talk about coming back with a bang! I'm not sure I'd be ready to call a PCM just yet, but it's certainly heading in that direction! Enjoy your next three weeks of travel in the mean time! :)
+rhkips Yeah you know me Kips- I won't call the PCM unless I can confirm there is no possibility a short to ground on the power is causing this. We have seen before where PCM shuts off a sensor circuit in such an event until the DTC is cleared.
+Schrodingers Box Yes, my cooling fan did not come on and the fuse in the fuse box had no power. It turned out to be the cooling fan relay and connector was burned. New relay and connector wire by the radiator solved that problem.
Welcome back, glad to hear about the promotion! When are you going to do a tool review on that wrench and 13mm socket? Thank you for zooming in on that bolt....
Congrats on your new promotion. The priorities in your life are about to change and car repair might have to take a backseat.At the same time it's all good news and a man has to do , what a man has to do.
I'll add my "Congratulations on your promotion" to all the others. I can tell you are a no joking around, hard charging the job type guy. I can see why you got the advancement and not another person (the ones that are still wondering why). Would like to talk with you about this new job and the work you are doing there. I have been studying cancer for many years just like you have been with cars. Hope someday we can get together talk about it. My best to you and good luck, JC
+John Carter Thanks man. I'll be happy to PM but you're right- not health to discuss it here as any other candidates who watch my channel might not exactly be too thrilled.
Checking amperage on the power feed would be a good way to check if it was a short to ground with resistance, pulling the 12v to ground. If no amperage, I would check continuity to ground with a test light hooked to 12v, and if not found, one "Fix" for this old gal would be to run an external 12v regulator or piggyback off the sensor A feed. Would be a bit of a hack fix, but on a 16 year old GM that's puking antifreeze and oil, not the worst thing.
+James Barcellano You got some great thinking. Too bad the issue is on the positive side. I suppose one could use a resistant way to check with a DVOM to see if the power would be found if the PCM was unpinned and you went to a different ground. Yes, I think that's a way to confirm if it's the PCM or a short. Wow. You got my thinking bro. and I think I thought of the next test to see where this is going. Awesome! :)
Pleasure bro!! yeah I know what you mean I feel ya. I just had a similar situation with a pre-1995/1996 Regal. And because I run and own a machine shop well.. you know.
I have a 12 honda insight hybrid i just replaced the engine and now i have no rpm signal, spark or injector pulse. Swaped out crank and cam sensor. Still no change. I checked grounds and connections the crank and cam run off the same wire. How do i test this with my dmm does it create its own voltage?
I been looking for 2wks can't find my location of my crankshaft sensors dealerships won't tell me where to look they suck but how do I figure this out?
What site will provide me with the 'exact' make and model of my automobile? 2015 Regal 2.4L FWD? Thank you or if you can respond with the exact engine HELP! I am trying to locate the crankshaft position sensor. Thanks, Willie.
It depends on which model you get. If you get it for just a specific make it’s like $250. If you get the full system that is compatible with all cars it’s like $1000.
Would it be possible to run a test light from battery ground to the 12V pin on the pcm you suspect is bad? If there's light, than it's good would be my suspicion. (Assuming the circuit carries current...)
+Paul Howard Good idea however I believe this design uses the delta in voltage from the source vs the PCM to read the sensor. If the PCM does not see the 12V then it cannot work. In other words it compares signal to the 12V source- it does not just look at signal. Not 100% sure though. Good thinking though!
+Schrodingers Box I think you're right, but Paul, if that did work, that'd save them from a PCM (well, they aren't that expensive on eBay, but if they work right or not may be in question).
+The Disgruntled Mechanic Hahaha Will do for sure bro, will do for sure! Thanks man, it's great to hear from you. And dammit- you ain't no 98%er I still say !!!
Yes, just did a crankshaft sensor in my Ford 5 Speed! Crank, no start! Much information on web is misleading. Many sensors in my Ford, but the crank sensor was located in the bell housing in the clutch/ Transmission. Unscrewed mine and the old one was half melted. Replaced it and engine restarted!
+Schrodingers Box I used a multimeter set to AC Volts and probed the 2 wires. While cranking the engine I should have got .5 to 1 Volts, but nothing showed. I then unscrewed the nut, pryed the sensor out and it was half melted.
+Schrodingers Box After much frustration because I am not an expert on cars I learned that when a car cranks and does not start it has to be either; not getting fuel, or not getting spark. I was getting fuel, but not any spark. I then tested the coil pack wires. The center wire is power and the left wire handles 2 cylinders & the right handles 2 cylinders. I probed the the center power wire with a multimeter to see if the coil pack was getting power. Yes it had power! Then I tested if the left & right coil pack wires was getting a signal and I used a small led test bulb that I got from R. S. No signal and that led me to test the crankshaft sensor wires. No signal.
I just subscribed to your premium channel this weekend but none of the videos will play, what format are they?! Any fix for this that you know of? Todd Annapolis, MD
HELP' 2003 Honda Accord 4cyl. I got a check engine light P0341 that i need to clear. It sounds like a lawnmower when i start it and the RPM drops and dies out. I changed the spark plugs and coils with new ones and It cleared the 4 codes it had that were P0300, P0301, P0302, P0303, P0304 HELP?
I need the data you got that you suspected a secondary ingitionj issue. How did you determine the plugs where the likely problem. Was resistance test done on the secondary otherwise? Whats your fuel trim indicating under load? There is no data to work from here.
We connected a code reader and got all the codes. 5 codes it had that were P0300, P0301, P0302, P0303, P0304, P0341 We seen it was a misfire so we replaced the plugs and coils. i cleared the codes and now we only have a P0341 showing. it says its a Camshaft Sensor. Thanks
hi i have a 2001 olsmobile intrigue 3.5l , but the water light comes on an off sometimes, even if the engine is full of antifreeze ,can u helpme with that
Gonna meet Paul Danner in the burgh? Sweet. I lived in Pittsburgh all my life until 10 yrs ago. Of course, I did not discover ScannerDanner until I moved down to VA Beach. I even lived 5 min from Rosedale!
Life long shade tree who just discovered your channel. Vids are greatly appreciated as the prices charged (parts & labor) @ many places is nothing short of criminal! Have an 05 Altima 2.5L that cranks but no start, tach doesn't move while cranking. How do I determine if it's crank or cam sensor? Can this be done with only multi meter & test light? Scientific/ True Diagnosis approach is awesome.👍 on promotion.
+Shawn P Yeah there is no way to even probe the sensor without removing the starter. But remember this is a hall effect sensor. The sensor must be backprobed and then starter reinstalled to crank vehicle to test it. AIn't nobody got time fo dat!
Matt, we missed you bro! Congrats on the promo! Looks like you forgot about your best friend the testlight to check powers and grounds to those CKP sensors...might have to subscribe to your premium channel for the in-depth analysis on this one :)
+South Main Auto Repair Hahaha man I barely remembered how to use my DVOM after that break from the action. Good to see you guys and I hope your channels are doing great!
congratulations in your promotion well deserved, how do I know if the ckp is a ground signal or power signal? thank you, keep up the good work Mateo, cheers from ontario ca
Congrats on your promotion! Would love to join the pay channel but would like to see other payment options other then wallet. Any possibilities? Thanks!
i have a suggestion for the channel. idk how to implement it but it would be funny and amusing if there was a way to click annotations to guess what the problem with the car is.
been watching a lot of your videos recently - nice job whilst i respect your methods and knowledge i do wonder if really modern cars with "non standard" OBD communications systems would prevent you doing a lot of what you do....?? by modern you could consider the BMW F10 chassis ......... keep up the good work !!
sorry sir, i subscribed to your channel recently and i congratulate you on the skill. sometimes on some instances i saw you using car wiring diagram. can you please make a video of where to find a correct wiring diagram maybe by using a vin num or anything. or let me just put it this way= make us a video of how to find a correct wiring diagram for a certain car and how to read it.
interesting problem. Thanks for sharing. I'm sure many shops would have simply diagnosed a bad crank sensor withthout checking voltage/ground as you did. Curious.....since you ran out of time and will be out for 3 weeks, what did you tell your client? Come back in 3 weeks? or did you sub out to another shop with very specific instructions on checking a short to ground, and possible PCM replacement? or did you actually have time to check short to ground and will follow up in another video 3 weeks from now? thanks again.
+Louis Pasnik Great question- yes unfortunately I had no alternative but to inform client of the diagnostic status and return in 3 weeks if they cannot find another mechanic to do this for free ;-)
hello sir,i am watching your videos and far since i have seen, you are very good in what are you doing,and thats a good thing.Now,i send you this message because i have a problem whit emissions in my car and its a little bit strange for me to understand,maybe you could advice me.So i have a vw passat 2001 1.6liter engine(alz code) and on the emissions test its fail because of the high carbon monoxyde(CO),but the hydrocarbons are below limit,both oxygen sensors are working properly,except the fact that the downstream sensor its not stable,ok this tell me that i have a bad cat but then why on idle all emissions are good and when the engine rev up to2400 rpm the CO became higher ?if it is a bad cat then even on idle this value of CO should be high?lambda coeficient its 1.01 the car acting normal,no bad mileage no strange noises from engine,all good except the emissions...
Yes you speak of course of Paul Danner. I have met him several times and we did some talk of doing a video together however it is virtually impossible given our locations in Denver vs Pittsburgh. I do talk to him occassionally though!
Yes, I speak of him (bowing my head)...LOL !!! !!...was watching this CRK sensor video. Question...I finally got around to doing a CKP/CMP correlation on my '01 Corvette this past weekend for the first time (at the PCM of course) on my Picoscope...now your Trans AM has the same LS1 engine ??...my CMP waveform looked really weird...if was as if you pulled up on one corner of the squarewave...I know it's not right....CKP is a perfect 24X waveform...have you ever seen a CMP that looked strange like this with your Vantage Pro ???...maybe I'll try it again but with my Vantage Pro and see if I get the same result. Thanks !!
Hmmmm no- everytime I have ever retrieved a waveform off a hall effect sensor it has been perfectly square (or missing if that's the issue). Not sure what to say about that. Maybe it's some type of interference voltage spike or something. A couple things you might try are using the sensor ground as opposed to battery ground, turning on filtering and turning off peak detect.
I'm guessing now it's probably because of using the battery ground...really didn't want to pierce another wire at the PCM but I guess I'll have to. That was my last sensor I wanted to check...injectors and ignition system waveforms all done...come on man, spend that cash !!...you're a big exec now !!...Vantage Pro compared to the Pico is like looking at a black and white TV vs. a 4000K OLED one !!...I just have the 2 channel one (4425) and that's fine for me !!...don't know if you've ever seen this video on misfire strategies...it's 3 hours but it's hard not to listen and watch and the Instructor is great...Dave DeCourcey... unfortunately passed away a few years ago...RIP...Thanks and have a great weekend !!...gotta try his dollar bill trick. th-cam.com/video/D0LXtvY3Qdg/w-d-xo.html
At 26:30 - discovering no pwr to sensor B, but a good ground... possibility of a short in the hall effect sensor?... ummm unlikely. I think I would have physically wired 12V to the pwr wire of sensor B, cranked the car, and looked for a square wave. If we do then wire loom and sensor B are good. Pwr at PCM bad. I'd yank out the PCM and clean the insides of debris and also spray it with electrical switch cleaner. Then reinstall and try again. If still no pwr then PCM bad. My $0.02.
No not a short in hall effect sensor- short to ground of the power wire that may be causing the power to shut off based on the circuit P-code presence. There is no need to do those other tests you described- I already did them in essence by "borrowing" the other crank sensor power signal and verifying the sensor itself works.
Good one for u or Anyone who knows there shit.. 2000 Ford focus see zetec engine egr tube, into the cat.. how do I get it off, no space for tools to break the bolt free. I seen two bolts hold as one on a guy's car and he couldn't do anything but break it, I need it as I'm doing the cat not the egr.. help Anyone ?? ??
matt your a true legend and helped me pass my lvl3 light vehicle repair qualification thank bro keep up your amazing videos
Love your channel and the knowledge you share. To do a visual inspection only takes a few seconds, often times you can accomplish this faster than you can boot up a scanner or oscilloscope. In fact almost every service manual will tell you to start with a visual inspection. You may just find a wire rubbing against a crank pulley. I have fixed MANY vehicles with a visual inspection that took less than 10 seconds. Simpleton? No, I like to call it efficient. If my flashlight and eyes don't see anything during a 10 second visual inspection, that's when diagnosis begins.
Anyhow keep up the good work and spreading the knowledge. Congrats on the promotion.
+Auto Fix Pal It is more a matter of logic and reason than practicality. Doing a visual inspection that requires removing splash shields, lifting car, And really having no idea what you're targeting seems ridiculous to me. At least now I know what to look for exactly.
Also you have no baseline. On ANY car you will find SOMETHING. But there is no scientific baseline to determine what you found was the cause and had effect as an independent variable.
Any way you look at it, starting a visual without foundation is always unscientific by definition. This channel is about scientific approach and procedure.
+Schrodingers Box AFP is right. We had a car that wouldn't start and it come up with crank sensor fault. After visual inspection we found out that crank sensor securing bolt was loose. 5min diagnosis.
+Schrodingers Box not suggesting that you start removing covers or parts. But i quick look under the hood with a flash light can often lead you in the correct direction. You stated Not all vehicles will show cranking RPM on the tachometer, YES this is true. But yet it was worth the time to check because it took no effort and can lead you in the correct direction.
You can't always trust scan data either, it's slow and its processed. The best way to really see what's going on is with an oscilloscope scope. Scan data is especially slow when your monitoring more than one PID at a time.
+Auto Fix Pal You're missing the point though- when you find an anamoly on a visual without defining baselines, how do you know it was the independent variable? That's my point. It's unscientific, you do agree, right? This channel shows scientific approach only.
+Gregory May Yea I understand but what I am saying is it is UNSCIENTIFIC. I am not debating Practicality. It is simply that it is an unscientific approach by definition is all.
Easiest way to check for short to ground without fancy tools is to unplug the PCM then run a wire from the relevant terminal through a 12v21w bulb to battery positive. If the bulb lights bright you have a short to ground.
Leave the ign off.
You can leave this hooked up while you are moving wires around to see if it flashes on and off.
Because the sensor normally runs from 12v this will not harm it.
If the light is on and goes off when you disconnect the sensor the fault is in the sensor.
Hope this helps.
I like your methodical approach rather than just replacing the part indicated by the code. :)
Just found this channel..., am amazed by the way you explain. You know how it works, don't you...
Thanks for the vids..!
I'm very intrigued, pun intended. Also, congratulations on the promotion!! You're one smart dude. Love the scientific approach to everything. Thank you!
Wow... I thought the mechanic's gig was your job... You do more work in your "spare" time than I have ever done in my life. Good for you.
yeah this is just my hobby. Always get a hobby you love that also generates income, I say!!
Well, I would've said maybe get a girlfriend but I really can't pinpoint what gender you are. You can't assume anything these days...
As far as "generating income" that wouldn't be a great idea with respect to a girlfriend.
@@TheWicklunds25lol
Happy that you at least didn't quit the channel. Congrats on the promotion.
Welcome back and congratulations on your promotion! I am sure it was well deserved!
+Monte Hyler It was... but I'm not sure what I did to deserve this much punishment lol.
To rule out a quick short to ground from the power feed without unplugging the CKP 'B', cut that wire and see if you have 12v from the PCM. You could also run a 12v source to that circuit from another as a temporary fix if the cost of the PCM is not within the customers budget.
Love your video's and keep them coming.
+dreamer2355 Cut the wire?? Why not just unplug the connector at PCM and do continuity test?
+Schrodingers Box that will depend on the PCM and the location. How will a PCM feed a circuit if its main power and grounds for the PCM are removed?
dreamer2355 EXACTLY. Therefore continuity with the frame confirms short to ground.
+Schrodingers Box i need to learn how to read. I never read your comment fully mentioning a continuity test. But yes, you can also run that test. Sorry about that.
+dreamer2355 No problem- your way would do same but I don't like to cut wires and introduce new variables in the repair.
thanks! i recently put in a NEW (but bad) CKP sensor and its apparently shorted internally- screwing up my fuel level gauge, ignition coil/ignitor(?) and setting off a host of other selonoids- et al! I cleaned all grounds, rebuilt my fuse box, new ECU, cleaned everything........no changes UNTIL i just now decided to swap back in the old CKP sensor. All the electrical clicking, etc went away immediately and Im not going thru the KEY RELEARN process for the new ECU
congrats on the position man! hope you had a kick ass celebration
+Dr. DietLemonT Hardly lol. Pretty much 80 to as much as 120 hour weeks since February. It's been hell honestly. Man it was great to take a breather and finally focus on something else. sure missed you guys!!
Dude!! I was gonna drop you a PM tonight to see how things were going! Glad to see you're still with us! Congrats on the promotion; that sounds like it's gonna keep you super-busy! If you're wondering what to do with the gobs of money you're making now, I'm open for donations! ;D
Man, talk about coming back with a bang! I'm not sure I'd be ready to call a PCM just yet, but it's certainly heading in that direction! Enjoy your next three weeks of travel in the mean time! :)
+rhkips Yeah you know me Kips- I won't call the PCM unless I can confirm there is no possibility a short to ground on the power is causing this. We have seen before where PCM shuts off a sensor circuit in such an event until the DTC is cleared.
+Schrodingers Box Yes, my cooling fan did not come on and the fuse in the fuse box had no power. It turned out to be the cooling fan relay and connector was burned. New relay and connector wire by the radiator solved that problem.
I am truly inspire by you!! You taught me a lot in only 1 month!! Just fully rebuild my engine thanks to you!!
Glad to hear it. Maybe you'll be doing repairs for others before long!
I'm glad for you Matt,justremember the words of a great philosopher: "with great power comes great responsibility". - Uncle Ben.
+Moving Up Diy True dat, homie. That is why I use my talents for good, never for evil.
+Schrodingers Box don't leave us, I just subscribed.
Welcome back, glad to hear about the promotion! When are you going to do a tool review on that wrench and 13mm socket? Thank you for zooming in on that bolt....
omg ... finally u came beck ,,,, thnx my best teacher ever
Glad you're back! congrats on the promotion!
+Andrew Parry Missed ya brah!!!
congratrs on your promotion, it was obviously due to your skill with the rachet counter clock movement,. very impressive.
Welcome back and congratulations.
+John Fountaine Thanks man. good to be back!
Welcome back Matt and thumbs up on the promo! You might get a guided tour of Rosedale College if you're lucky....Cheers
+tecnaman Scanner Danner in Pittsburgh? Cool. I wasn't putting that together myself, thanks. :)
yep good to see you back and congratulations on your promotion
+Eddie Martinez Thanks brah!
Congrats on your new promotion. The priorities in your life are about to change and car repair might have to take a backseat.At the same time it's all good news and a man has to do , what a man has to do.
Congratulations on the promotion. You have that Snap-On scope and it has wire location for testing the 24 CKPS and the 7 CKPS.
Im new to your channel and I absolutely find your humour hilarious
You had me at what kind of ratchet is that!! Glad your back!!
+bigdaddymak1439 Okay, I KNOW I'm playing into your humor in all the wrong way, but I thnik it's a dewalt, lol.
When he said are you using a hex or 12-point and said I really didn't notice man that was the best laugh I had in 2 years.
I'll add my "Congratulations on your promotion" to all the others. I can tell you are a no joking around, hard charging the job type guy. I can see why you got the advancement and not another person (the ones that are still wondering why). Would like to talk with you about this new job and the work you are doing there. I have been studying cancer for many years just like you have been with cars. Hope someday we can get together talk about it. My best to you and good luck, JC
+John Carter Thanks man. I'll be happy to PM but you're right- not health to discuss it here as any other candidates who watch my channel might not exactly be too thrilled.
Congratulations on the promotion. I think I can live with fewer videos - but not forever! :)
Welcome back Matt!!!! Can't wait for more videos!
The old super common GM CKP sensor lol. Excellent diagnosis and explanation. I have not done this through the PCM before.
Glad to see you back :-)) ....and great work like ever.
I just had a similar problem with a crank sensor on an Astro Van. It had intermittent power at the sensor. It turned out to be a bad ignition switch.
Matt who are you visiting in Pittsburgh? Grats on the promotion.
Lol how did you survive for 3 months without being able to make fun of the 98% and the wrench-turners?
Checking amperage on the power feed would be a good way to check if it was a short to ground with resistance, pulling the 12v to ground. If no amperage, I would check continuity to ground with a test light hooked to 12v, and if not found, one "Fix" for this old gal would be to run an external 12v regulator or piggyback off the sensor A feed. Would be a bit of a hack fix, but on a 16 year old GM that's puking antifreeze and oil, not the worst thing.
+James Barcellano You got some great thinking. Too bad the issue is on the positive side.
I suppose one could use a resistant way to check with a DVOM to see if the power would be found if the PCM was unpinned and you went to a different ground.
Yes, I think that's a way to confirm if it's the PCM or a short. Wow. You got my thinking bro. and I think I thought of the next test to see where this is going. Awesome! :)
+James Barcellano I was thinking the same thing of ether checking for a ground w/ a test light or ohms meter. amp meter would have worked great too.
welcome back.
missed you
+steveoktay First lol!! Missed you too brah!!! Hope you enjoy this one.
welcome back again,good video
:P you just made a lot of people very happy, including me!!!! welcome back bro!!!
Welcome back Schro!!! Wtg buddy.. congrats! BTW nice :)
+gbowne1 Thanks man its good to get my fingernails dirty again lol
Pleasure bro!! yeah I know what you mean I feel ya. I just had a similar situation with a pre-1995/1996 Regal. And because I run and own a machine shop well.. you know.
You're back!
Could it be that the resistor in the pcm that feeds power to the crank circuit has burned out and needs to be replaced?
quick test cut the wire and see if the 12 volts returns cheers sandy or alternatively disconnect multiplug at pcm and do continuity check
welcome back ...i did miss you :)
+deepsquat600 Me too man. That sucked not making videos but there was just no possible way. Still challenged with availability but working on it.
Please pardon off topic question. If possible which budget scan tool would you recommend? Thank you.
congratulations, I guess. Good to see you back.
Matt, I like to see you again miss you and as always a fantastic video.
Greetings from Spain = P
+Pablo A Thanks Pablo. I missed you to my friend!!
Can you jump power from crank A to B ??
Yes, that would be valid bypass if you suspected lack of feed to a sensor.
Congratulations on your promotion.
Indeed.
Thank you for the video and good luck with the new position.
I have a 12 honda insight hybrid i just replaced the engine and now i have no rpm signal, spark or injector pulse. Swaped out crank and cam sensor. Still no change. I checked grounds and connections the crank and cam run off the same wire. How do i test this with my dmm does it create its own voltage?
WHy did you change the cam AND crank sensors? What was your data indicated both were faulty? That is really unlikely. I would start there.
I been looking for 2wks can't find my location of my crankshaft sensors dealerships won't tell me where to look they suck but how do I figure this out?
Just think - they either have to be along the flywheel or along a synchronizer. Just look there
What site will provide me with the 'exact' make and model of my automobile? 2015 Regal 2.4L FWD? Thank you or if you can respond with the exact engine HELP! I am trying to locate the crankshaft position sensor. Thanks, Willie.
I use Alldata DIY
What scanner did you use when you showed engine speed,crank and cam signal ? Do you still use it today?
Yes I used autoenginuity in that video and I use it all the time still.
@@SchrodingersBox cool is it expensive?
It depends on which model you get. If you get it for just a specific make it’s like $250. If you get the full system that is compatible with all cars it’s like $1000.
@Schrodingers Box Thank you soo much for the info! I really appreciateit and the great videos!
Would it be possible to run a test light from battery ground to the 12V pin on the pcm you suspect is bad? If there's light, than it's good would be my suspicion. (Assuming the circuit carries current...)
+Justin “JeepnJG” Gooding You could certainly do that.
If the PCM does turn out to have a bad output, and you don't find a root cause, could you just inject 12v into that circuit from some other source?
+Paul Howard Good idea however I believe this design uses the delta in voltage from the source vs the PCM to read the sensor. If the PCM does not see the 12V then it cannot work. In other words it compares signal to the 12V source- it does not just look at signal. Not 100% sure though. Good thinking though!
+Schrodingers Box I think you're right, but Paul, if that did work, that'd save them from a PCM (well, they aren't that expensive on eBay, but if they work right or not may be in question).
Hey Shrodinger,
What do you like best - hall, variable reluctance, or optical? What do you see in the real world, in terms of reliability?
congrats on promotion a loss for us youtubers but great for you! good to see you back, from youtubes favorite 98%'er! Tell Paul I said hi.
+The Disgruntled Mechanic Hahaha Will do for sure bro, will do for sure! Thanks man, it's great to hear from you.
And dammit- you ain't no 98%er I still say !!!
+Schrodingers Box Could you put a link in of where you bought that Craftsman Rachet???? Oh and the socket too? Thanks!
The Disgruntled Mechanic Hahahahahaha!!! Oh man, sure do miss ya brah!!!
+Schrodingers Box Hey I live in Central part of PA. Let me know if you ever make it out this far!
+The Disgruntled Mechanic Ok next trip I'll look you up. maybe we'll do a 2% vs 98%er showdown lol!!!
Yes, just did a crankshaft sensor in my Ford 5 Speed!
Crank, no start! Much information on web is misleading. Many sensors in my Ford, but the crank sensor was located in the bell housing in the clutch/ Transmission. Unscrewed mine and the old one was half melted. Replaced it and engine restarted!
before I took my sensor out I tested the wires by probing them to see if I got a signal.
+prosperandbehealthy And what did it show?
+Schrodingers Box It showed no signal.
+Schrodingers Box I used a multimeter set to AC Volts and probed the 2 wires. While cranking the engine I should have got .5 to 1 Volts, but nothing showed. I then unscrewed the nut, pryed the sensor out and it was half melted.
+Schrodingers Box After much frustration because I am not an expert on cars I learned that when a car cranks and does not start it has to be either; not getting fuel, or not getting spark. I was getting fuel, but not any spark. I then tested the coil pack wires. The center wire is power and the left wire handles 2 cylinders & the right handles 2 cylinders. I probed the the center power wire with a multimeter to see if the coil pack was getting power. Yes it had power! Then I tested if the left & right coil pack wires was getting a signal and I used a small led test bulb that I got from R. S. No signal and that led me to test the crankshaft sensor wires. No signal.
glad to see you go
what about unplugging the PCM and do a continuity test between sensor B and engine ground?
+Qiong Jia Yes that's coming in next video for sure.
I just subscribed to your premium channel this weekend but none of the videos will play, what format are they?! Any fix for this that you know of?
Todd
Annapolis, MD
It has to be an issue with your browser. As you can see the videos all have comments and play fine.
Try using Chrome, its what I use
Welcome back….great per promo !
Welcome back; I thought you had abandoned your free channel in favor for your pay channel.
And if so that’d be okay everyone has to act in their own interest
glad 2 know u work for a $20 bil. co. now I really am impressed!
HELP'
2003 Honda Accord 4cyl.
I got a check engine light P0341 that i need to clear.
It sounds like a lawnmower when i start it and the RPM drops and dies out.
I changed the spark plugs and coils with new ones and
It cleared the 4 codes it had that were P0300, P0301, P0302, P0303, P0304
HELP?
I need the data you got that you suspected a secondary ingitionj issue. How did you determine the plugs where the likely problem. Was resistance test done on the secondary otherwise? Whats your fuel trim indicating under load?
There is no data to work from here.
We connected a code reader and got all the codes. 5 codes it had that were P0300, P0301, P0302, P0303, P0304, P0341
We seen it was a misfire so we replaced the plugs and coils.
i cleared the codes and now we only have a P0341 showing. it says its a Camshaft Sensor. Thanks
just what the handheld scan tool codes that came up. no other info I got it just showed the codes. No other test were done.
@@jessetrujillo1600 Well I need data from testing to help. Good luck!
congrats on the promo! glad your back too
hi i have a 2001 olsmobile intrigue 3.5l , but the water light comes on an off sometimes, even if the engine is full of antifreeze ,can u helpme with that
check for low water level and then check for intermittent failure of the coolant level sensor.
could i ask where you are getting your wiring diagrams from ,this is one of the hardest thing in the uk is to find good wiring diagrams
I use BBB Industries
Gonna meet Paul Danner in the burgh? Sweet. I lived in Pittsburgh all my life until 10 yrs ago. Of course, I did not discover ScannerDanner until I moved down to VA Beach. I even lived 5 min from Rosedale!
+Scott Amoroso Yes I remember you saying this a while back. I'm Looking forward to a Primanti Bros sandwich lol!!!
We missed you..Was wondering what was happening with you. Come to find out you got promoted. Congrats!!!!
+Freddy Soto Thanks man. It's sucked not doing cars though!!
So there's no part 2?
Life long shade tree who just discovered your channel. Vids are greatly appreciated as the prices charged (parts & labor) @ many places is nothing short of criminal! Have an 05 Altima 2.5L that cranks but no start, tach doesn't move while cranking. How do I determine if it's crank or cam sensor? Can this be done with only multi meter & test light? Scientific/ True Diagnosis approach is awesome.👍 on promotion.
Normally I just do a CKPS or CPS bypass and the one that works validates the bad component. Simple as pie!!
Will a bad crankshaft position sensor always set a code?
No- I have videos where intermittent CKPS failure failed to set a code in fact
@@SchrodingersBox thanks
congrat's on your promotion. That is a good way to fund more expen$ive tools.
+Ozzstar .... that I won't have time to use lol.
Schrodingers Box thats the truth haha
woot glad to see you bro
+Chad Cohoon Woot woot brah!!
Hi Matt, Are there physically 2 sensors, or are they both inside of one unit.
two built into one 16:42
How did I miss that? He said it twice!!
Thank you loz larkin
freakin love the humor in this video!
Hey nice to see ya buddy , was wondering where you went. 👍👍
+STEVE ROB Hi Steve!!! Sure missed ya man!! Guess what man- Corynne just bought a new Camaro lol.
Schrodingers Box Wow, fantastic and I could have saved her $5K LOL Buddy I did tell you about this . I wouldn't mention it to Corynne. LMAO
I hope you show this. My father's '98 has the same problem. I read that removing the starter was necessary. Interesting video.
+Shawn P Yeah there is no way to even probe the sensor without removing the starter. But remember this is a hall effect sensor. The sensor must be backprobed and then starter reinstalled to crank vehicle to test it.
AIn't nobody got time fo dat!
Pittsburgh? You stopping by Paul's shop/tech school?
Matt, I like to pay to educate me more with your videos, but, what I have to do?
information will be coming in a few weeks.
Going to see Scanner Danner?
If you repair a short to ground and still don't have power to sensor B, How about jumping the A sensor power to the B sensor instead of buying a PCM?
You're visiting Pittsburgh? That can only mean one thing, you're doing a video with Scotty!
MATT, hello hello I was worried what happen to you now I know thanks for the video and congratulation on ur promotion
Matt, we missed you bro! Congrats on the promo! Looks like you forgot about your best friend the testlight to check powers and grounds to those CKP sensors...might have to subscribe to your premium channel for the in-depth analysis on this one :)
+motoYam82 HAhaha! If I only had 4 bucks...
+South Main Auto Repair Hahaha man I barely remembered how to use my DVOM after that break from the action. Good to see you guys and I hope your channels are doing great!
I was to I need a cam sensor replacement, so I put one in and now my speedometer don't work.
Sounds to me like a misdiagnosis and incoect installation. Confirm the diagnosis with a bypass test and then ensure installation is correct
Battery, alternator, starter voltage is good wiring is right. Crank no start. I am doing this myself cause I don't have a honest mechanic.
Well if it were me i’d look at CKPs and CPS outputs and verify with bypass testing.
besides what does batter, alternator and starter have to do with a crank no start????
congratulations in your promotion well deserved, how do I know if the ckp is a ground signal or power signal? thank you, keep up the good work Mateo, cheers from ontario ca
Congrats on your promotion! Would love to join the pay channel but would like to see other payment options other then wallet. Any possibilities? Thanks!
i have a suggestion for the channel. idk how to implement it but it would be funny and amusing if there was a way to click annotations to guess what the problem with the car is.
+Echowhiskey Oh, like a mid video vote? Sounds like a pain to set up (I'd have no idea and I do make videos.) That does sound like fun as an end user.
yessss i missed ya ya goof!!!...lol..congratts.
been watching a lot of your videos recently - nice job
whilst i respect your methods and knowledge i do wonder if really modern cars with "non standard" OBD communications systems would prevent you doing a lot of what you do....??
by modern you could consider the BMW F10 chassis .........
keep up the good work !!
Damn it I hate to wait three weeks for an answer !! Lol. Will be watching same bat time on the same bat channel!👍 so where is part 2 ?
nice to see you making videos again also they put the pcm in the air filter to air cool it go figure gm
sorry sir, i subscribed to your channel recently and i congratulate you on the skill. sometimes on some instances i saw you using car wiring diagram. can you please make a video of where to find a correct wiring diagram maybe by using a vin num or anything. or let me just put it this way= make us a video of how to find a correct wiring diagram for a certain car and how to read it.
Yes my pay channel shows this several times. I use BBB industries for my wiring diagrams by VIN#
@@SchrodingersBox I WANT TO JOIN YOUR PAY CHANNEL BUT JUST DONT KNOW HOW. AND HOW MUCH PER MONTH. PLEADE HELP ME SUBSCRIBE TO IT
@@SchrodingersBox tell me how to subscribe to your paid channel. i want to, just dont know how
@@SchrodingersBox TELL ME HOW TO SUBSCRIBE TO YOUR PAY CHANNEL
interesting problem. Thanks for sharing. I'm sure many shops would have simply diagnosed a bad crank sensor withthout checking voltage/ground as you did. Curious.....since you ran out of time and will be out for 3 weeks, what did you tell your client?
Come back in 3 weeks? or did you sub out to another shop with very specific instructions on checking a short to ground, and possible PCM replacement? or did you actually have time to check short to ground and will follow up in another video 3 weeks from now? thanks again.
+Louis Pasnik Great question- yes unfortunately I had no alternative but to inform client of the diagnostic status and return in 3 weeks if they cannot find another mechanic to do this for free ;-)
hello sir,i am watching your videos and far since i have seen, you are very good in what are you doing,and thats a good thing.Now,i send you this message because i have a problem whit emissions in my car and its a little bit strange for me to understand,maybe you could advice me.So i have a vw passat 2001 1.6liter engine(alz code) and on the emissions test its fail because of the high carbon monoxyde(CO),but the hydrocarbons are below limit,both oxygen sensors are working properly,except the fact that the downstream sensor its not stable,ok this tell me that i have a bad cat but then why on idle all emissions are good and when the engine rev up to2400 rpm the CO became higher ?if it is a bad cat then even on idle this value of CO should be high?lambda coeficient its 1.01 the car acting normal,no bad mileage no strange noises from engine,all good except the emissions...
Did you get to meet the "Jedi Master" ??....it would be cool for you two to do a video together !!
Yes you speak of course of Paul Danner. I have met him several times and we did some talk of doing a video together however it is virtually impossible given our locations in Denver vs Pittsburgh. I do talk to him occassionally though!
Yes, I speak of him (bowing my head)...LOL !!! !!...was watching this CRK sensor video. Question...I finally got around to doing a CKP/CMP correlation on my '01 Corvette this past weekend for the first time (at the PCM of course) on my Picoscope...now your Trans AM has the same LS1 engine ??...my CMP waveform looked really weird...if was as if you pulled up on one corner of the squarewave...I know it's not right....CKP is a perfect 24X waveform...have you ever seen a CMP that looked strange like this with your Vantage Pro ???...maybe I'll try it again but with my Vantage Pro and see if I get the same result. Thanks !!
Hmmmm no- everytime I have ever retrieved a waveform off a hall effect sensor it has been perfectly square (or missing if that's the issue). Not sure what to say about that. Maybe it's some type of interference voltage spike or something. A couple things you might try are using the sensor ground as opposed to battery ground, turning on filtering and turning off peak detect.
I'm guessing now it's probably because of using the battery ground...really didn't want to pierce another wire at the PCM but I guess I'll have to. That was my last sensor I wanted to check...injectors and ignition system waveforms all done...come on man, spend that cash !!...you're a big exec now !!...Vantage Pro compared to the Pico is like looking at a black and white TV vs. a 4000K OLED one !!...I just have the 2 channel one (4425) and that's fine for me !!...don't know if you've ever seen this video on misfire strategies...it's 3 hours but it's hard not to listen and watch and the Instructor is great...Dave DeCourcey... unfortunately passed away a few years ago...RIP...Thanks and have a great weekend !!...gotta try his dollar bill trick. th-cam.com/video/D0LXtvY3Qdg/w-d-xo.html
At 26:30 - discovering no pwr to sensor B, but a good ground... possibility of a short in the hall effect sensor?... ummm unlikely.
I think I would have physically wired 12V to the pwr wire of sensor B, cranked the car, and looked for a square wave. If we do then wire loom and sensor B are good. Pwr at PCM bad. I'd yank out the PCM and clean the insides of debris and also spray it with electrical switch cleaner. Then reinstall and try again. If still no pwr then PCM bad. My $0.02.
No not a short in hall effect sensor- short to ground of the power wire that may be causing the power to shut off based on the circuit P-code presence.
There is no need to do those other tests you described- I already did them in essence by "borrowing" the other crank sensor power signal and verifying the sensor itself works.
Good one for u or Anyone who knows there shit.. 2000 Ford focus see zetec engine
egr tube, into the cat.. how do I get it off, no space for tools to break the bolt free. I seen two bolts hold as one on a guy's car and he couldn't do anything but break it, I need it as I'm doing the cat not the egr.. help
Anyone ??
??