Camshaft Position Sensors can be located on the cylinder head, valve cover,
timing case cover, or on a drive housing protruding from the engine block.
The Camshaft Position Sensor is an input to the engines computer system or
ignition control module. The Cam Sensor locates the position of the camshaft for proper
ignition firing and fuel injector firing sequence. The sensor is also required by the computer
for proper cylinder misfire identification.
Failure Symptoms: Malfunction Indicator Light illumination, failed emission test,
engine no-start condition, poor fuel economy