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Home >> BMW >> 2016 >> 335i Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 1084 (Self Diagnosis - Diagnostic Trouble Codes (N20 & N26)) >> Fault Code Tests >> DTC P2271: BMW DTC 12A101; DME -- O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 2) >> Fault description

Fault description

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Diagnosis monitors the voltage of the oxygen sensor after catalytic converter.

Malfunction monitoring conditions

The fault is detected whenever the voltage of the oxygen sensor after catalytic converter is too high for a continuous period.

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