Home >> BMW >> 2012 >> 760Li >> Repair and Diagnosis >> Engine Performance >> System >> Self Diagnosis - N74 - Diagnostic Trouble Codes - DTC P1638 (BMW DTC 100001) Through DTC P140E (BMW DTC 110008) >> DTC P02A2; BMW DTC 10F302: Cylinder equalization above lambda, cylinder 3: cylinder-selective oxygen-sensor control, upper limit reached >> Action in service