Camshaft Position Sensor Intake/Exhaust
The function of the camshaft is to detect the cam rotor's flanks. The signal from the sensor is used by the Engine Control Module (ECM) to determine the camshaft's angle position. Camshaft position sensor uses a pulse wheel on the camshaft consisting of five teeth (one tooth positioned by each flank) to detect the flanks.
In the event of misfire or engine knock, the control module is able to determine which cylinder is misfiring or knocking using the camshaft position sensor signal.
Also see KNOCK SENSOR and ENGINE SPEED (RPM) SENSOR .
The sensor, which is a magnetic resistor with a permanent magnet, is grounded in the control module and supplied with 5 V from the control module.
When one of the teeth on the camshaft pulse wheel passes the camshaft position sensor, a signal is transmitted to the control module from the camshaft position sensor. The signal becomes high when a tooth is in contact with the camshaft position sensor and low when the tooth leaves the camshaft position sensor.
There is camshaft position sensor for each camshaft.
The camshaft position sensors are located by the camshafts on the engine's right side.
The Engine Control Module (ECM) can diagnose the camshaft position sensors.