Home >> BMW >> 2013 >> 740Lxi >> Repair and Diagnosis >> Engine Performance >> System >> Self Diagnosis - N55 - Diagnostic Trouble Codes - DTC P1638 (BMW DTC 100001) Through DTC P10EB (BMW DTC 10BA41) >> DTC P12A4; BMW DTC 104302: Manifold Absolute Pressure Sensor 'A' Afterrunning Diagnosis Pressure Too Low >> Fault code