Ignition System: Description and Operation

The ignition coil:
- changes the low voltage signal from the Powertrain Control Module (PCM) to high-voltage pulses.
- produces the high-voltage pulses to the spark plugs.
- connects directly to the spark plug.

The spark plug:
- changes high-voltage pulses to sparks at a gap which ignites fuel and air mixture.
- has a platinum-enhanced active electrode for long life.

Ignition System

The ignition system consists of the:
- Crankshaft Position sensor (CKP sensor).
- Camshaft Position Sensor (CMP sensor).
- spark plug.

The ignition system is:
- a Coil On Plug (COP) ignition system controlled by an Electronic Engine Control (EEC) integrated into the powertrain control module.
- set for base timing at 10 degrees Before Top Dead Center (BTDC) and is not adjustable.