Leistungsverlust beim 1,9 TDI | Posts 16+

Unfortunately, that might be true, but they usually can't afford to cause problems with the warranty claim.

But who knows that already?

Burli.

Markus H. wrote:

Hi, It's commendable that a workshop wants to conduct its own calibration tests. Are you certain that it's not the magnetic valve for boost pressure regulation? In the error description, this part is the culprit in 90% of the cases - and it's cheap, too.

Okay, I've already replaced the boost pressure control solenoid valve, but it had the same result, so the boost pressure control solenoid valve must be working correctly.

Okay, I think I've figured out where my problem lies.
It was time for me to change the oil and other fluids again, and when I took a closer look at my turbocharger, I discovered that the linkage between the wastegate actuator and the turbocharger itself was stuck and wouldn't move. Consequently, that is the cause of the performance loss.

Let's see if anything can be done to fix this, or if I need a new turbo or intercooler.

It's going to be a real pain if I have to change or remove the charger, especially since I need the car every day.

@sputnic

Do you have the 1Z model? I have that one too. I can't move the support rod with my hands either... It didn't move until I blew compressed air into the can (of course, I had previously sucked on it and ended up with my whole face covered in oil ).

No, my engine code is AHU.
I once sucked on the hose of the charging socket and also got my mouth full of oil, it was really disgusting.

hello!

I'm experiencing the same problem with my 2.0 TDI (modified).

It's probably due to the charging cable.

Funny: I'm always getting the error code 'Short circuit in height sensor to positive'?!?!

Hello,

The altitude sensor is located inside the control unit and measures air pressure.
This serves as a correction factor for the boost pressure control.
At excessively high altitudes, where the air is thinner, the boost pressure is also reduced to protect the turbocharger.

If your error code is correct (there have apparently been instances of incorrect assignments in diagnostic software), then there is likely a problem with the altitude sensor (pressure sensor) in the control unit. It is also conceivable that stray metal shavings could be present, settling in undesirable locations and interfering with soldering.

Best regards, Rainer.