Home >> BMW >> 2014 >> 750Li >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Self Diagnosis - Diagnostic Trouble Codes - Bank 1 (N63TU) >> Fault Code Tests >> DTC P014A: BMW DTC 12B011; DME -- O2 Sensor Delayed Response - Rich To Lean (Bank 2 Sensor 2) >> Fault effect and breakdown warning