What Causes Delayed Ignition in BMW?
1 Answers
BMW delayed ignition can be caused by poor fuel quality or issues with the ignition switch. Faulty Camshaft Sensor: If the timing alignment is confirmed to be correct, the camshaft position sensor should be checked to ensure it is functioning properly. Insufficient Fuel Pressure: Fuel pump pressure loss or poor injector sealing can lead to inadequate fuel pressure, resulting in prolonged ignition time. Faulty Carbon Canister Solenoid Valve: Weak ignition after sun exposure without secondary ignition attempts is usually due to a faulty carbon canister solenoid valve. Intense fuel vaporization under sunlight can cause cylinder flooding (wet walls) if the valve seal is compromised.