Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes - DTC P1327-U1202 (N62) >> BMW Me9.2.3 (DTC P1327-U1202) >> DTC P2271, BMW Hex Code 0x2C6D, BMW Code 11373: O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 2) (MIN) >> Fault debouncing