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Home >> BMW >> 2012 >> X6 50i >> Repair and Diagnosis >> External Pages >> Different car >> Section 1998 (Self Diagnosis - Diagnostic Trouble Codes - DTC P0035 - DTC P0480 (N63 & S63)) >> Diagnostic Trouble Codes (DTCS) MSD85 - Bn2020 >> DTC P2272, BMW Hex Code 0x12A202, BMW Code 1221122: O2 Sensor Signal Biased/Stuck Lean (Bank 2 Sensor 2) >> Possible Fault Causes

Possible Fault Causes

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Oxygen sensor 2 behind catalytic converter defective

-Leak in exhaust system upstream of oxygen sensor 2 behind catalytic converter

-Defect in wiring harness to oxygen sensor 2 behind catalytic converter

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