Possible causes – Faulty Exhaust Valve Timing Control Position Sensor Bank 1– Exhaust Valve Timing Control Position Sensor Bank 1 harness is open or shorted– Exhaust Valve Timing Control Position Sensor Bank 1 circuit poor electrical connection– Accumulation of debris
Possible causes – Faulty Exhaust Valve Timing Control Position Sensor Bank 1– Exhaust Valve Timing Control Position Sensor Bank 1 harness is open or shorted– Exhaust Valve Timing Control Position Sensor Bank 1 circuit poor electrical connection– Accumulation of debris
Possible causes – Faulty Intake Manifold Runner Control (IMRC) Valve– IMRC Valve harness is open or shorted– IMRC Valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty Intake Manifold Runner Control (IMRC) Valve– IMRC Valve harness is open or shorted– IMRC Valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty Valvetronic Control Motor– Valvetronic Control Motor harness is open or shorted– Valvetronic Control Motor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1078 BMW Description VVT overload protection control