VW Mk6 gti rough idle + misfires & CEL code: P0506 (Idle speed performance lower) I ordered a new PCV valve hoping it resolves the misfires, but I stumbled upon this near
The Ultimate 2.0T PCV Fix, Anyone do this? | VW GTI MKVI Forum / VW Golf R Forum / VW Golf MKVI Forum / VW GTI Forum - Golfmk6.com