Camshaft position
| Camshaft position |
| Camshaft position sensor |
The camshaft position sensor is of Hall-effect type and, apart from the Hall sensor element, consists of a special "pimple" on the exhaust side's camshaft sprocket in the front row of cylinders.
When the camshaft rotates and the "pimple" passes the Hall sensor, this indicates that cylinder 1 is ready for combustion.
In simple terms, the camshaft position sensor could be likened to a switch in the control module's signal lead which is open or closed according to the position of the "pimple".
Using the information from the crankshaft and camshaft position sensors, the control module can calculate when cylinder No. 1 is ready for combustion.
The camshaft position sensor receives power from the main relay and is grounded at engine grounding point G7S.
The signal is a square wave sent out via pin 2 and received on pin 8 of the control module.
The voltage alternates between five volts (5 V) when the Hall-effect sensor is open and zero volts (0 V) when the sensor is screened.
The maximum distance between the camshaft sprocket's "pimple" and the Hall effect sensor should be 1.5 mm.
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