Optima L4-24L (2001) Crankshaft Position Sensor: Technical Service Bulletins
Crankshaft Position Sensor: Testing and Inspection
CRANKSHAFT POSITION SENSOR
The crankshaft position sensor senses the crank angle (piston position) of each cylinder and converts it into a pulse signal. Based on the input signal, the
ECM computes the engine speed and controls the fuel injection timing and ignition timing.
CIRCUIT DIAGRAM