AutoZone OBD reader comes up with catalytis converter problem, possibley caused by engine misfire, large vacuum leak or excessive oil in exhaust. No engine misfire, now vacuum leaks found, not using oil. HOWEVER, I did add a bottlE of injector cleaner a couple fills backs and the "Service Engine Soon" lite came on for a couple days. Gone after next fill up and this is 1st trip on freeway since. Is it possible the injector cleaner damaged the oxy sensor or converter?
Monday, December 12th, 2011 AT 12:14 AM