Home >> BMW >> 2008 >> M3 2D Convertible >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes - DTC P1602 - DTC U1153 (S65) >> MSS60 Engine Operating System DTCS >> DTC P2273, BMW Hex Code 0x273B, BMW Code 10043: O2 Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 2) (MAX) >> System test