Car is "running rich" 2002 VW Passat
Hi - there are many problems which can cause a "running too rich (https://www.yourmechanic.com/question/car-running-rich)" scenario: bad oxygen sensor, leaking fuel injectors, excessive fuel pressure, malfunctioning engine coolant temperature sensor, etc. Check problem codes first (whether Check Engine light is on...
I got the knock sensor code so Im getting back to you ...
I got the knock sensor code so Im getting back to you