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Home >> BMW >> 2014 >> 535d >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes (N47 & N57, Diesel) >> Fault Code Tests >> DTC P2271: BMW DTC 12AF20; DME -- O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 2) >> Action in service

Action in service

Check lines and plug connections between the following components:

Renew oxygen sensor after catalytic converter.

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