code help

LJmagicJJ

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ok so i had an o/r h pipe on then i put the stock h pipe back on...ever since then the check engine light hasn't gone away....i've taken the negative off of the battery and the check engine light will stay off for a little while, but then it come back on. the other day i cleared the codes and it said 02 sensor bank 1 sensor 2, but i do not remember what the code number was...what's goin on here? could one of the o2's be bad? how would i be able to tell this? do they o2's have to be plugged in it a certain order?


thanks for the help.
 

gt96stang

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Sounds like your 02 sensor is bad.. Rear one on the passenger side.. Probably code P0141.. How do I know? because I got the same thing wrong with my car.
 

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