Ignition system — general information (Mitsubishi Matrix)

The ignition advance angle is controlled by the electronic control system. The values of the optimal ignition advance angles for all engine operating modes are recorded in the memory of the electronic engine control unit (ECM).

The engine operating mode (crankshaft speed, load, engine thermal state, etc.) is determined by signals from various sensors. Based on signals from the sensors and data on optimal ignition advance angles, the electronic engine control unit (ECM) sends signals to interrupt the current in the primary winding of the ignition coil.

The ignition coil creates high voltage to create a spark, thus controlling the ignition timing.