General Information

The electronic ignition system on the 2.2 L dual overhead cam (DOHC) engine provides spark energy to ignite the air/fuel mixture necessary for combustion. The Powertrain Control Module (PCM) controls spark under all engine running conditions. The system components include: the ECM, Electronic Ignition (EI) module/ignition coil housing/spark plug boots, spark plugs and knock sensor.

The spark dwell (On-time) and degrees of spark advance are dependant upon engine speed, Manifold Absolute Pressure (MAP), and Engine Coolant Temperature (ECT). The ECM can vary spark advance from 60° BTDC to 3° ATDC under all engine running conditions when no spark knock is present.