Hello all,
I have a 2009 R32 on which I've been trying to track down a high partial fuel trim on Bank 1. It varies from around +12 to +19 at the worst.
Bank 2 sits steady around +7.
Idle fuel trims for both banks around +0.2
It's had:
New fuel filter
New fuel pumps (both)
New CTS
New MAF
New...