Camshaft position sensor
| Camshaft position sensor |
The camshaft sensor is a hall sensor type and is integrated in the distributor.
The slot rotor only has one slot, which indicates when cylinder no.1 is ready for combustion.
Simplified, one can say that the camshaft position sensor works as a breaker on the signal lead to the control module, which is open or closed depending on the position of the slot rotor.
The sensor receives its voltage from the control module and is grounded together with other sensors.
With information from the position sensor for both the camshaft and crankshaft, the control module can work out when cylinder 1 requires combustion.
The camshaft position sensor receives the 5 volts from the control module pin 12 and is grounded in the engine grounding point G7S.
The signal, which is a square wave, is sent out via pin 2 and is received by the control module pin 8.
The voltage changes between 0 volts with an open Hall sensor and 5 volts when the sensor is shielded.
If the sensor is not functioning or an open-circuit occurs, the engine performance deteriorates slightly and the CHECK ENGINE lamp (MIL) comes on.
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