Crankshaft Position Sensor (3.8L)

Crankshaft position sensor utilizes a Hall Effect switch mounted near vibration damper. The sensor monitors vibration damper position (crankshaft position) and sends signals to ignition module. These signals provide PCM with a TDC position reference for each piston, as well as supplying an engine speed (RPM) signal. This allows PCM to compute crankshaft position and RPM and fire appropriate ignition coil at the proper time. For additional information, see ELECTRONIC IGNITION (EI) under IGNITION SYSTEM.