Turbo fault codes? How to test the vacuum system? Here is the complete guide! All makes and models.
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- Опубліковано 5 лют 2025
- Hello guys! Error P0237, P0236? Other turbo-related errors? Is the lack of power permanent or intermittent? All of these symptoms can have a very simple solution if we do our troubleshooting. Also, how to test the turbo pressure sensor in fast and fail proof way.
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Alfista salutations!
#AlfaRomeo #alfa156 #AlfaRomeoNoProblem
Bruno, I watch many of your videos...and this one saved my day today. The Turbo is now working again on my 159 and it was a "zero $" repair...thank you 👍
Thanks for watching and thank you for the support. Please share the video with your friends
Great video. Thorough diagnosis and test procedure. Subscribed :)
Thank you very much
(Edit: the P0237 came back after weeks and will remain a miracle to me) Excellent video, grazie mille signore! I had to figure out all this information by my own being abroad with an expedition car, a new Isuzu D-Max with a lot of electronics which I was kind of shocked about. Eventually it was nothing of the causes I suspected and you described. The P0237 error only came when the diesel tank was at 15% level or less and it is probably the electronic controlled tank ventilation. Still abroad I don't have access to tools and parts so today I have to live with it and keeping the tank level higher.
Hello. That is very odd.. normally fuel pressure and air pressure do not interfere between each other.
You may have a bad ECU or map. It is diesel, right?
@@alfaromeonoproblem Apparently they do. I found it in a Pierburg troubleshoot document affecting the intake manifold pressure. I can sent it to you if you want.
Send me please
@@alfaromeonoproblem Just sent. But may be you are right and the ECU is faulty.
Welldone, very good info and straight to the point. Thank you.
Hello. Thank you very much for watching my video!
Great information for troubleshooting fault codes starting from the basics 💯
Hello. Thank you very much!
Hi bruno what kind of pipes I need to buy to replace the damaged one? I cannot find the right diameter on eper/elearn
Hello. New they just sold the entire set. To repair a good thick 4mm usually does it
@@alfaromeonoproblem I was thinking to use silicon vacuum pipes not original spare parts that were I live are unavailable.
@JoeDae22 os they are good, go ahead
That was great, much respect! Thank you, really helpfull video. It would be great if you made a video about computer diagnostics, for example, 159 model.
Hello. Thank you very much. I have a playlist that may help you out:
ua-cam.com/play/PLgcTCigdgD8Oq_yDGwgi_4W_TKhzoqhnI.html
Today I drove an Alfa GT 1.9 JTD 150hp, hard acceleration as they say, full throttle. At about 180-190kmh, it throws a check engine error and the dashboard says motor control system failure. The car goes into safe mode. I turn off the car, turn it on and everything is normal, I drove it for 210 km after that, but the error remained. Diagnostics showed P0237, Turbo/super charger boost sensor 'A' circuit low. I deleted the error and everything was normal, until I drove it full throttle again. This only happens at high speeds with hard acceleration. Did you have the same experience and how did you solve it?
Hello. Yes, that is common. The solution is on this video. Thanks for watching
So it’s an error at vacuum system ?
Yes, usually is
Great as always!! Cheers mate 👍👌
Thank you very much for watching my video!
great video again
Hello. Thank you very much!
Perfect, thank you.
Thank you very much for watching my video!
I removed my reservoir box due to the physical damage and connected to the regulator of the turbo , so do i face any performance issues related turbo actuating and boost ?
Hey. If you do not any leaks and the solenoid is good, yes you need the reservoir
@@alfaromeonoproblem Oh..thank you Sir😊
So I'm adding the reservoir in between the vaccume pump and the regulator of the turbocharger. Do i ?
@lakshminarayana173 yes, that's it
Great info. Thanks.
Hello. Thank you very much
Quality content, thanks!
Hello. Thank you very much for watching!
Amazing ! Thank you sir ❤🍀🐍
Thank you very much for watching!
Hi, do you know the inner diameter of the vacuum pipes? I want to replace the old ones with silicone ones (before this I'll test the 0.9 and 0.6 bars with manometer)
Hello. It depends on the car. But usually 3.5 or 4mm
@alfaromeonoproblem thank you, i forgot to mention, its a 147 im buying with loss of power only in the low rpm range
Great explications thanks!
Question please:
When i shut down the engine of my 156 2.4 jtd 175, the actuator stay on pressure 20-30sec. I ear a little noise about the regulator (i have buy a new and it make the same noise after stop engine)
And after 20-30sec the noise stop and i
ear a sort of 'pschiiit' who comes of the actuator
and the shift on the actuator returns to its place.
Is it normal ?
Hello. Yes, it's normal to do that. On previous cars it was less time and often not enough time. So later they extended the time. I have other videos on this subject
@@alfaromeonoproblem Thanks you very much for your answer 🙏🏽
I have never find the answer on Internet and nobody can say If its normal or not.
You are the best man ! Thanks
Check out if this helps you out a bit more:
ua-cam.com/video/2eSHdMKFVCw/v-deo.html
Can a vac leak cause the car to have uneven idle?
Not on these cars. Gasoline cars yes
One question: all vacuum pipes of my car have been checked and ok. When i disconect the MAF car goes veeery good, not as perfect but really good. When i conect everything, car does not have power from 1700 to 2500 rpm.
New MAF conected and the problem is the same ...
Maybe the problem is related with MAP?
I think that i can discard turbo because when MAF is not conected the car runs really fine.
¿What do you think?
Thanks!
Hello. What car is it?
@alfaromeonoproblem 156 1.9jtd 8v 115cv
@miguelangelaranda6255 not the map. Test the maf please:
ua-cam.com/video/7erMLUm_1do/v-deo.htmlsi=OvJs6-8W0rZJK7SL
@@alfaromeonoproblem i have not tester, but MAF is BOSCH brand nee
@miguelangelaranda6255 autodoc?
Good Video!!
Do You use a race chip? I saw somting in the left near to the incoming air pipe wich looks like a race box. Does this work?
Hello. Yes it is. I have it for about ten years. Works very well. No smoke and more grunt. Also have it on my sedan JTD. Same story.
Will do a video for that too
@@alfaromeonoproblem I think about this very long time. Can you say what you use exactly? I want to buy it now also!
Mine is no longer manufactured.. it really was a long time ago. It does not have a name on the box. It was a German site I guess
Is it possible to not have any fault codes and have a leak somewhere?
Hello. Absolutely! Low boost normally does not create a fault code on these cars.
Hello my Alfa Brother,should i clean the EGR before blocking it,or there will be no be problem do it without cleaning? Sorry foR my bad English,and greetings from Macedonian jtd Alfista 😂🍻🍻🍻
Btw,respect for your job and dedication! My problem now is the loosing of power on uphill and when i hit in the hole,so my gas pedal not responding on the first half,sometimes there is no reaction even if i press it to the end,then it starts the acceleration right at the moment. Sorry for my long comment and bad English,but maybe you can give me some advice,what should i do.
Hello. Do not worry, I can understand you perfectly. I need to know which can do you have and what engine is in it. Thanks for watching
Thank you for helping me! my engine is 1.9 jtd 8v,the model is 156 and 2000 the year of production :/
Btw,my father now is telling me that it can be the protocomer,that sensor next to the filter) or many other things 🤦♂️...
105 hp btw
Hello. Can be it, yes. But you need to make sure before you go and by one. Check out if this helps:
ua-cam.com/video/7erMLUm_1do/v-deo.html
My people say the medical is Five ,,money" ,but you have to find it 😂 The electrician will check it tomorrow,and i will tell in the comment the problem...if he find it of course🤦♂️.Big thanks again,and i really like and respect your videos 🍻
When I turn off the car it shuts off very agressively, the sound is like it stumbles on itself. What could this be?
Hello. I have a lot of videos for that:
ua-cam.com/video/ikSmJS47NGI/v-deo.htmlsi=26OT8AM0uWlA2yIb
ua-cam.com/video/wA4NuJkMqy0/v-deo.htmlsi=z3A7BGNKG0KqQRcu
And more
Where is ar75 engine video?
Hello. Witch one?
@@alfaromeonoproblem Engine is shot with this bent Conrod?
Here you have it: ua-cam.com/video/Oc_ATXRuz14/v-deo.html