Camshaft Position Sensor (C(3)I)
The 3.8L C(3)I models use a Hall Effect camshaft position sensor. The cam sensor provides PCM with a TDC No. 1 signal used to compute the exact position of valves. This allows PCM to properly time fuel injection. A fault in the cam sensor circuit (no cam sensor signal) will allow the engine to continue running (based on last known timing) and should set a related trouble code. For additional information, see FUEL CONTROL under FUEL SYSTEM.