2.0 Tfsi BUL Rough Idle information

Vagmad

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Hi all,
I’m hoping someone will be able to chime in with my issue that I’m having on my b7 dtm.

The car runs really rough at idle, logs the following codes:
Missfires cyl 1,2,3,4
Random multiple cyl missfire’s.

I have done some research on it which has lead me here as the car is still faulting.

I’ve replaced the pcv valve as the symptoms indicated a bad one, I also disconnected the pipe from the inlet manifold and blanked it before replacing the pcv to isolate it
(car ran perfectly but had very high crankcase pressure, I didn’t drive the car like this and only did it for testing).

After replacing the pcv the issue remains, I can still remove and blank off the inlet manifold connection and the engine idles perfectly but with high crankcase pressure.

Any help is appreciated.
 

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