Question about 2002 Pontiac Grand Am

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Do the 2002 pntiac grand am have two oxygen sensers? car has no power. though it was transmission? was told that in could be the catyliatic converter.

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Bad O2 sensor(s) won't cause significant loss of power. restriction with gas flow (filter, pump) or exhaust (catalytic converter) most definitely can.

Posted on Sep 10, 2010

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Engine problem i think?


when a oxygen sensor is bad it shows and acts as if there is problem somewhere in the car. even though you had the O2 censor changed there is still a chance that when they ordered and installed it that it was defected. yeah its stupid but that was what i was told by a mechanic. but thats what that sounds like or maybe transmission.

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