Ignition Timing Control System: 1.8L

Ignition timing control system is composed of various sensors, Electronic Control Module (ECM) and power transistor. Depending on engine operating conditions, ignition timing control system functions to regulate ignition timing and current flow time of primary current, assuring good ignition performance. The on/off switching of primary current flowing in ignition coil is performed by power transistor, which in turn is regulated by ECM.