Volkswagen Passat B5 Discussion
I own a 2002 Passat 1.8t awm engine. Just need some insight on what what might be the case.
I have two codes on my car, P0420 (Catylictic Converter) and P0411 (SAI).
Just changed my rear downstream O2 sensor for P0420 and thought that was going to solve that issue. Interestingly...