01-18-2021, 02:54 PM | #2 |
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Drives: 01' E46 325i / 16' F80 M3
Join Date: Dec 2013
Location: Taxachusetts
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12A902 - Oxygen sensor after catalytic converter, electrical: short circuit to ground.
12AA02 - Oxygen sensor after catalytic converter 2, electrical: short circuit to ground. So it's the Oxygen sensor after the catalytic converter in bank one. The Longer downpipe. Part number 11787848486 https://www.fcpeuro.com/products/bmw...mm-11787848486
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mr.paulo.dias
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