Engine Ignition

The electronic ignition (El) system for the 3.0L Duratec engine consists of the following components:

• ignition-coil-on plug
• spark plug
• crankshaft position (CKP) sensor
• camshaft position (CMP) sensor

The crankshaft position (CKP) sensor:

• is a variable reluctance sensor.
• is mounted in the front cover.
• is triggered by a 36-minus-l tooth trigger wheel located behind the front cover.
• provides base timing and crankshaft speed (RPM) to the powertrain control module (PCM).

The camshaft position (CMP) sensor:

• is a variable reluctance sensor.
• is mounted in the front cover.
• is triggered by the high point mark on the LH exhaust camshaft.
• provides camshaft rotational location information to the powertrain control module (PCM).