BMW Mass Air Flow Sensor - 13621747155

A failing mass air flow sensor can cause numerous check engine codes. The sensors measure the amount of air entering the engine via the intake.  Mass Air Flow Sensor Failure Symptoms Check engine light illuminated with OBD codes related to MAF sensor faults Engine has rough idle and/or stalls Short term fuel trim is rich at idle or lean under load Constantly runs rich or lean Replaces BMW PN 13621747155 Fitment: 325i 1992-1995 (7) Air Mass Meter 325is 1992-1995 (7) Air Mass Meter 525i 1992-1995 (6) Air Mass Meter 525iT 1993 (1) Air Mass Meter 530i 1994-1995 (3) Air Mass Meter M3 1994-1995 (2) Air Mass Meter