i just replaced my off-road x pipe with the stocker and both o2 sensors threw a code after i started it. they were fine before and one of them even was replaced under a year before! any idea what would cause this?
Disconnect the batt. for like 30 mins or so, reconnect, then see. Also, during installation/deinstallation you could have broke them (maybe), they are kinda fragile.
im pretty sure i didnt break them i erased the codes and put a new one in one side, and it still is coming up with one code for bank 2. which bank is which side?
Did you touch the sensor ends of the o2's with your bare hands? Try taking them off and using a propane torch to clean them. Just heat them up and burn any thing off of them.