Ignition System

Ignition system is a type of DIS ignition, but does not use a waste spark method. Instead, each spark plug acts as a variable resistor to trigger the coils to fire. Each spark plug has an individual coil sitting inside the ignition control module on top of engine. For a complete description of operation, see TRIONIC ENGINE MANAGEMENT SYSTEM  . During starting of vehicle, the ECM does not know if No. 1or No. 4 cylinder is at TDC. So it fires both cylinders simultaneously. Cylinder No. 2 and No. 3 are fired the same way.