2000 Volkswagen Passat Q&A

2000 Volkswagen Passat Question: will not pass smog new cats but still have dtc's.

did have p0420, p0421 but now p1338 and p1113 -
Answer 1
For bank one "meaning the cylinder bank with #1 cylinder", have oxygen sensors tested for correct heater function. Also have crankshaft/camshaft position sensors tested by a qualified mechanic. -