20+ Year Contributor
- Dec 6, 2002
ok i got my 3in catback put on by mineke on friday. They did a great job and everythng was fine till i was driving later friday night and my check engine light went on, but everything seemed ok and ran normal. So the next morning i disconnected the negative wire on the battery to reset the ecu and the light didn't come back on. Now today just driving around the light comes on for no reason again. Now I think its got to be my second O2 sensor b/c when Mineke took it out they heated it with a blow torch then broke it loose off the stock exhaust b/c there was alot of rust. Anyways wouldn't this heat hurt the O2 sensor or damage it? Or is it just a coinsidense that the light goes on the same day my new exhaust goes on and it might be something else?