Code P1290 after VCG replaced?

BHAMDOC1973

MEMBER
2013 BMW 328
4 CYL
TURBO
2WD
AUTOMATIC
149,000 MILES

I doubt it was there before. I had some turbo leaks before but I am sure it was from the valve cover leaking bad. Now I have p1290, made sure coolant is full, replaced sensor, same result. I can read engine coolant temperature via scanner with old and new sensor.

5 Replies

KEN L

MASTER CERTIFIED MECHANIC
42,904 POSTS

This code can mean many things because BMW uses this generic code to list many faults pertaining to the engine coolant sensor/turbo and wastegate. Have you replaced the turbo? I have seen that fix it.

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Sunday, October 30th, 2022 AT 3:37 PM

BHAMDOC1973

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Drives great not in limp mode. I still have the same four codes to turbo but when I delete them and before starting the car I only get 2 codes which means it's a hard code. Having a hard time trying to understand what part I need based on the two codes left.

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Sunday, October 30th, 2022 AT 3:50 PM

KEN L

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Yep, that DME code I don't like, it can be causing the other codes, I would try to get a rebuilt DME to see if that fixes it. The code P1290 is a difficult one to fix. Check out the images (below). Please let us know what happens.

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