Interesting result. I wouldn't have though of this sort of issue - bad connection or bad modules quelling the CANbus, to the point the car would not start. Thank you for showing the rest of us! This is something an amateur/involuntary mechanic by way of Mk4 VW ownership, like me, just wouldn't think of. I know I learnt quite a bit with these two videos, so now I have another 'tool' in my head when dealing with a no-start, or electrical woes.
Very good and comprehensive. I was researching a related issue on my 2001 Audi S8. Seem to have the exact symptoms. The IMMO was my initial diagnosis but your video added more info.
+1 on the ABS controller bringing the network down being a common problem on VW's (and Audis). Had that on my 99 A4, when I first bought it as a non-runner. Unplugged the ABS unit and was able to connect to PCM and scan for codes. Luckily, the connector was really easy to get to on my car.
This is awsome. You are the best car doctor in the world :). I have a problem with my k-line. Im reading 11volts on the obd so i cant read for trouble codes. No radio installed.
@@CoolAirVw There is no radio or radio adapters. When i bought this car all the cables to the radio was cut off. I have a cheap scan tool and with that i can scan but i cant test anything. Im reading a trouble code on throttle position. I also have an obdeleven that schould be the same as vag-com but for andriod but with that i cant connect and then i cant do a alignment on the throttle position. Do you have any suggestion what to do? The car is a golf 1.8 Gti.
@@fredrik6166 check for power and ground to OBDII connector then make sure k line isn't shorted to power. Then look at wiring diagram to see what modules are on the data bus's and what databus it has. Unplug modules till it communicates if that doesn't do it look for short to power or ground onthe K-line or the databus wires. This is just general advice on communication problems.
I will do that. I have checked my k-line on the obd and i have 5 volts with ignition off and 11 volts with the ignition on. I dont know if this is correct. Should i even have any voltage on the k-line with ignition off?
Its possible, but I learned after the video that the car was in a crash, hence the new fender and new suspension parts. I always worry whenever there is a computer failure whether someone "jump started" or charged the battery with the terminals reversed.
2011-18 Jetta 2.0L CBPA gas here, Old School mechanics used to unplug MAF Sensors to check if it works if engine shuts off.. Does this still apply to newer vw's, or this no longer applies bc of new tech?
in some diesel cars it works Fiat stilo , 1.9 jtd peugeot 308 1.6 hdi On a toyota if you disconnect the maf sensor car goes in protection Anyway if you have a diagnostic tool it’s possible to see and test maf sensor values on different rpm s
Having this issue with my 02tdi (bought with hile in block) got a motor together to put in it got it in and having this issue now if the abs module isn't the problem what would be your next step in diagnosing this problem? Just watched your video and learned a lot from it thank you.
1st step. Scan all modules and see if any are communicating. Watch the video again and take notes. Watch my other video. Next step would be based on which modules will communicate. ruclips.net/video/S0vtC_AbRpg/видео.html
Interesting video. I have a golf Comfortline 1.6 2005. Had to change the engine because it died. Put a newer one in place (gold trend 1.6 2015same engine). The car doesn't start. Scanned it and found 13 foaults, one of them being the engine locked by immobilizer. I run some other non mechanical tests, and the car started and died. I haven't got airbags But I'll scan it again and follow your instructions. Hope it finally works coz it's driving me nuts
@@CoolAirVw yes, intermittent problem on SEAT 1.9pd.Similar to Golf plus.Disconnecting the battery terminal seemed to reset the system and car would start.Replaced key fob batteries as they were old.Dont know if it makes a difference?
Hey i have a vw cc 2011 2.0tsi only misfires on a single cylinder,p0301, p0341 camshaft position code, p0055, p0441. 160k miles. Timing has been done along with a balance shaft replacement. Car starts on a dime even in the cold. But has terrible low end power and will sputter. Reving to about 1.5k rpms and letting off at idle my rpms will drop and sputter before either stabilizing or just stalling. It does seem to idle roughly too. Any ideas? Just cant find anything similar to my case but i did notice a lot of similarities with the 2012 vw u worked on eith vvt issues. My car isnt running nearly as poorely though and starts fine. No clue whats wrong
Have you checked the cam solenoid (cam magnet) to see if its stuck? Have you checked the oil control valve to see if it has the problem like in my other video? Do you have vagcom to run the timing check I did in the other video? I have several videos on timing issues on that engine and similar. You might even have Timing jumped one tooth. You probably need to address the cam timing code 1st. but you might have a timing problem and a separate misfire problem like a coil pack or something else. I have videos on diagnosing misfires as well.
@@CoolAirVw Thanks for the reponse. I do not have vagcom but im taking the car to someone who does today, and i havent pulled off the cam position sensor and checked the valve but thats next on the list.
@@CoolAirVw Also today it started to show new symptoms. Under load it stumbles and bucks, and is reading that it has low oil pressure but when tested with a mechanical gauge its fine.
@@readylucas In your comment you said, "cam position sensor". I think you meant cam solenoid or cam magnet. Just want to make sure we are communicating on the same wavelength.
@@CoolAirVw My bad. I meant that i havent pulled the sensor and checked the magnet or valve solenoid. Im replacing coils/plugs and the sensor today. Ik its unlikely it is the sensor, but its really dirty so i was going to clean it and replace the sensor, then see if p0341 comes back. I have noticed it misfires more with load. Around half throttle 2-3rd gear it will stumble and the engine light flashes, but it runs smooth 1/3 to 1/4th throttle. I dont have vagcom, or special tools to work on these. Or the experience so im taking it to a forgein auto so they can work on the p0341. I dont have the tools on me to do it and id rather it be done by a professional. I dont trust myself doing it and i was to have the timing chain tensioner and chain replaced along the way if it hasnt been already along with all the guides.
In my 2001 VW Jetta vr6 automatic 2.8lt no communication also but the instrument cluster is on and off and when you turn off the engine the immobilizer will pop up
Interesting result. I wouldn't have though of this sort of issue - bad connection or bad modules quelling the CANbus, to the point the car would not start.
Thank you for showing the rest of us! This is something an amateur/involuntary mechanic by way of Mk4 VW ownership, like me, just wouldn't think of. I know I learnt quite a bit with these two videos, so now I have another 'tool' in my head when dealing with a no-start, or electrical woes.
thats why I do what I do. Thanks for watching and commenting on my channel.
Very good and comprehensive. I was researching a related issue on my 2001 Audi S8. Seem to have the exact symptoms. The IMMO was my initial diagnosis but your video added more info.
I hope the video helped.
@@CoolAirVw yes it did, thank you. something else to look at.
+1 on the ABS controller bringing the network down being a common problem on VW's (and Audis). Had that on my 99 A4, when I first bought it as a non-runner. Unplugged the ABS unit and was able to connect to PCM and scan for codes. Luckily, the connector was really easy to get to on my car.
common yes.
Is it a good to just unplug or delete those abs and airbag computers so you don’t end up stranded?
You really helped me i have treyed so many ways to fix my broblem, thank you so much!!💞💞👊👊
Thanks you helped her solve a Passat with this problem which I was trying to fix for the last 2 months
I'm glad it helped you!
Good one Richard... lots of great info!
Thanks for watching Thomas.
Great diagnosis and fix thanks for talking the time 👍
Thank you for the kind comment.
TQVM Sir, it really help my diagnostics.
what fixed yours?
this is good video with a good mystery to find the guilty module.i like those mystery.you did a great job. thank for sharing
thanks!
This is awsome. You are the best car doctor in the world :). I have a problem with my k-line. Im reading 11volts on the obd so i cant read for trouble codes. No radio installed.
It isn't the radio its the adapters. If you have a radio adapter with no radio then it might cause no communication with the scan tool.
@@CoolAirVw
There is no radio or radio adapters. When i bought this car all the cables to the radio was cut off. I have a cheap scan tool and with that i can scan but i cant test anything. Im reading a trouble code on throttle position. I also have an obdeleven that schould be the same as vag-com but for andriod but with that i cant connect and then i cant do a alignment on the throttle position. Do you have any suggestion what to do? The car is a golf 1.8 Gti.
Oh i forgot. It is a golf gti mk4
@@fredrik6166 check for power and ground to OBDII connector then make sure k line isn't shorted to power. Then look at wiring diagram to see what modules are on the data bus's and what databus it has. Unplug modules till it communicates if that doesn't do it look for short to power or ground onthe K-line or the databus wires. This is just general advice on communication problems.
I will do that. I have checked my k-line on the obd and i have 5 volts with ignition off and 11 volts with the ignition on. I dont know if this is correct. Should i even have any voltage on the k-line with ignition off?
Great Video. I'm wondering if the cut wire at the sensor caused the failed ABS control module?
Its possible, but I learned after the video that the car was in a crash, hence the new fender and new suspension parts. I always worry whenever there is a computer failure whether someone "jump started" or charged the battery with the terminals reversed.
2011-18 Jetta 2.0L CBPA gas here,
Old School mechanics used to unplug MAF Sensors to check if it works if engine shuts off.. Does this still apply to newer vw's, or this no longer applies bc of new tech?
unplugging a maf sensor as a test is never a good test for anything. I dont care what people on the internet say.
in some diesel cars it works
Fiat stilo , 1.9 jtd peugeot 308 1.6 hdi
On a toyota if you disconnect the maf sensor car goes in protection
Anyway if you have a diagnostic tool it’s possible to see and test maf sensor values on different rpm s
@@senseihai6699 good point, but seeing them only helps if you know what is right.
Having this issue with my 02tdi (bought with hile in block) got a motor together to put in it got it in and having this issue now if the abs module isn't the problem what would be your next step in diagnosing this problem? Just watched your video and learned a lot from it thank you.
1st step. Scan all modules and see if any are communicating. Watch the video again and take notes. Watch my other video. Next step would be based on which modules will communicate. ruclips.net/video/S0vtC_AbRpg/видео.html
Interesting video. I have a golf Comfortline 1.6 2005. Had to change the engine because it died. Put a newer one in place (gold trend 1.6 2015same engine). The car doesn't start. Scanned it and found 13 foaults, one of them being the engine locked by immobilizer. I run some other non mechanical tests, and the car started and died. I haven't got airbags
But I'll scan it again and follow your instructions. Hope it finally works coz it's driving me nuts
Thanks a lot HAPPY NEW YEAR
Happy near year to you.
Impressive diagnosis!
awe, shucks! Thanks!
Very well explained.
I noticed this and another comment, are you having a immo problem?
@@CoolAirVw yes, intermittent problem on SEAT 1.9pd.Similar to Golf plus.Disconnecting the battery terminal seemed to reset the system and car would start.Replaced key fob batteries as they were old.Dont know if it makes a difference?
Hey i have a vw cc 2011 2.0tsi only misfires on a single cylinder,p0301, p0341 camshaft position code, p0055, p0441. 160k miles. Timing has been done along with a balance shaft replacement. Car starts on a dime even in the cold. But has terrible low end power and will sputter. Reving to about 1.5k rpms and letting off at idle my rpms will drop and sputter before either stabilizing or just stalling. It does seem to idle roughly too. Any ideas? Just cant find anything similar to my case but i did notice a lot of similarities with the 2012 vw u worked on eith vvt issues. My car isnt running nearly as poorely though and starts fine. No clue whats wrong
Have you checked the cam solenoid (cam magnet) to see if its stuck? Have you checked the oil control valve to see if it has the problem like in my other video? Do you have vagcom to run the timing check I did in the other video? I have several videos on timing issues on that engine and similar. You might even have Timing jumped one tooth. You probably need to address the cam timing code 1st. but you might have a timing problem and a separate misfire problem like a coil pack or something else. I have videos on diagnosing misfires as well.
@@CoolAirVw Thanks for the reponse. I do not have vagcom but im taking the car to someone who does today, and i havent pulled off the cam position sensor and checked the valve but thats next on the list.
@@CoolAirVw Also today it started to show new symptoms. Under load it stumbles and bucks, and is reading that it has low oil pressure but when tested with a mechanical gauge its fine.
@@readylucas In your comment you said, "cam position sensor". I think you meant cam solenoid or cam magnet. Just want to make sure we are communicating on the same wavelength.
@@CoolAirVw My bad. I meant that i havent pulled the sensor and checked the magnet or valve solenoid. Im replacing coils/plugs and the sensor today. Ik its unlikely it is the sensor, but its really dirty so i was going to clean it and replace the sensor, then see if p0341 comes back. I have noticed it misfires more with load. Around half throttle 2-3rd gear it will stumble and the engine light flashes, but it runs smooth 1/3 to 1/4th throttle.
I dont have vagcom, or special tools to work on these. Or the experience so im taking it to a forgein auto so they can work on the p0341. I dont have the tools on me to do it and id rather it be done by a professional. I dont trust myself doing it and i was to have the timing chain tensioner and chain replaced along the way if it hasnt been already along with all the guides.
Thank you so much for an awesome video!!
Glad you liked it!
Good find 👍🏻
Thanks for watching and commenting on my channel.
Brilliant!!!
thanks!
Jesus the mystery of the trinity
Amen!
Unbelievable. These vehicles are disasters huh?
No. They're Great!
👌👍
THANKS FOR WATCHING AND COMMENTING ON MY VIDEO.
👍👍
thanks!
In my 2001 VW Jetta vr6 automatic 2.8lt no communication also but the instrument cluster is on and off and when you turn off the engine the immobilizer will pop up
@@percivalpayabyab8122 Ok.