Generating High Voltage: The ignition coil transforms the low-voltage electrical current from the battery into a high-voltage spark. This spark is essential for igniting the air-fuel mixture in the engine cylinders during the combustion process.
Inducing Spark: When the engine control unit (ECU) sends a signal, the ignition coil rapidly builds up energy. Once the signal is released, the coil discharges this stored energy as a powerful spark across the spark plug gap. This spark ignites the fuel mixture, allowing the engine to run.