Crankshaft Position Sensor (2.2L)

Crankshaft position sensor utilizes a pick-up coil type sensor mounted on side of engine block. The sensor monitors internal crankshaft wheel 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. Crankshaft position sensor signal is also used to determine triggering of the fuel injectors. For additional information, see ELECTRONIC IGNITION (EI) under IGNITION SYSTEM.