Originally Posted by
onehundred80
Look up the problem in the Repair Manual
But it could be the air pump playing up, stuck or burnt relay in the RCM.
Must be a single source problem and not the cats.
I agree.
I have never pulled a code for the cats before installing the replacement Camshaft sensor. I'm going to re-install the old sensor today, clear the codes, and see what comes back up. If the only code I pull after that is the original 0341, I can blame the other codes on a faulty replacement unit (cheap ebay part...). Update to follow!