have code po 155 need to know if it is on passenger side of vehicle or drivers and if it is before or after the cat
Apr 16, 2009 at 4:30 PM
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BLACKOP555
CAR REPAIR CONTRIBUTOR
10,386 POSTS
it is bank 2 sensor one. since it is on bank 2 it is on the exhaust piping on the bank opposite of the one containing cylinder one. and since it is sensor one it is BEFORE the catalytic convertor.