P0420 Code
#1
P0420 Code
Clearly we all know it's a catalyst issue (bank 1) and it probably will need to be replaced. My question is, several other things could have caused it because a converter (from my very limited knowledge) is not exactly a wear and tear item. Replacing the part can be done of course, but what caused it? Some of my research says faulty O2 sensors, but I would assume it would throw a code as well. I also saw that it could be a misfire (no codes for that) as well as oil contamination (I am burning oil).
What has all of your experiences been? I can change O2 sensors easily.
What has all of your experiences been? I can change O2 sensors easily.
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