Possible causes
– Fualty Differential Pressure Sensor
– Differential Pressure Sensor harness is open or shorted
– Differential Pressure Sensor circuit poor electrical connection
– Differential Pressure Sensor harness is open or shorted
– Differential Pressure Sensor circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1124 BMW OBD Code Description
Differential pressure sensor intake manifold offset bank 1