How to Deal with No Spark from Ignition Coil?
1 Answers
There are several reasons for no spark from the ignition coil, including a faulty crankshaft position sensor, a damaged ignition coil, or a malfunctioning engine control unit (ECU). Below are the specific details: 1. Faulty Crankshaft Position Sensor: A damaged crankshaft position sensor or camshaft position sensor can cause the ignition coil to have no spark. 2. Damaged Ignition Coil: The ignition coil may be faulty, or there could be issues with the wiring, such as abnormal power supply, poor grounding, or short circuits in the signal line. It could also be a problem with the high-voltage wires (spark plug wires) or the spark plugs themselves. 3. Malfunctioning Engine Control Unit (ECU): The ECU may be damaged, or there could be issues with its power supply or grounding. If all cylinders have no high-voltage spark, it is likely a problem with the crankshaft position sensor. If only individual spark plugs are not firing, it is usually an issue with the ignition coil, spark plugs, or high-voltage wires.