Possible causes – Faulty Differential Pressure Sensor– 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) P1104 BMW Description Differential pressure sensor intake
Possible causes – Faulty Engine Torque Control– Engine Torque Control harness is open or shorted– Engine Torque Control circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty HO2S12 Sensor– Exhaust leak near HO2S12 Sensor– HO2S12 Sensor harness is open or shorted– HO2S12 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty HO2S12 Sensor– Exhaust leak near HO2S12 Sensor– HO2S12 Sensor harness is open or shorted– HO2S12 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty Mass Airflow Sensor (MAF)– Mass Airflow Sensor harness is open or shorted– Mass Airflow Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty Mass Airflow Sensor (MAF)– Mass Airflow Sensor harness is open or shorted– Mass Airflow Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty Turbocharger Wastegate Solenoid– Turbocharger Wastegate Solenoid harness is open or shorted– Turbocharger Wastegate Solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1104 Description Mass Air Flow Ground Malfunction is one of the definitions for the P1104; however your vehicle’s manufacturer may have a different definition for the P1104 code. Please