Hey members,

So I got my high idle solved thanks to old guy's insight with the oil cap being under lot of suction - PCV and PRV was changed to new OEM (https://www.audizine.com/forum/showt...mp-P1136-stat))
But still looking at MBV 032, my partial trim is off according to the specification in notes in the OBDeleven-app (which says +/-10%).
  • Idle: -0.6%
  • Partial -10.9%


-> How should I start investigating this?


From what I read so far, possibly fuel issue or air leak after turbo, but before intake(?), e.g.:

* Fuel pressure regulator
* Injectors
* Possibly MAF

Recently done/changed on car except PCV/PRV:
  • Fuel filter
  • TB cleaned and adoptation made


I've also checked lamda values for different RPM and full throttle (MVB 031 I think it was) - they seem to check out according to this reply by Audi Skate snow in (bottom of) https://www.audizine.com/forum/showt...ock-32-Problem
I'll do it again, just to verify.

In some other post I stumbled upon, the values in MVB 111 (charge pressure control) was of interest, here are mine:
  • Adaptation rpm range 1: -2.9%
  • - range 2: -3.8%
  • - range 3: -1.3%
  • - range 4: -0.3%


Thanks for any and all insight!

Audi A4 Avant FWD, B7, 1.8t (BFB), MY08