Camshaft Position Sensor: Description and Operation

HALL SENSOR:



A new, plug-in, plastic covered Hall sensor used to determine the ignition TDC of the 1st cylinder is installed at the 3rd cylinder in the camcase for cylinder line 1 - 3.




The Hall signal is generated by a rotor which is attached to the intake camshaft for cylinder line 1 - 3.

Apart from determination of the ignition TDC of the 1st cylinder and the associated assignment of the injection signals (sequential), the ignition signals (permanent high-voltage distribution), and the knock sensor signals (knock control), the Boxster's Hall sensor signal is also used for diagnosis in the VarioCam system.