Camshaft Sensor

WARNING: This page is about a different car, the 2002 Jaguar XKR and 2002 Jaguar XK8. However, it is still accessible from the selected car via links, so may be relevant.

The camshaft sensor is a variable reluctance sensor that provides an input to the ECM of intake camshaft position.

On normally aspirated engines, a camshaft position sensor is mounted at the rear of each cylinder head on the inlet side and is triggered by a four toothed sensing ring, to provides four signals every 720 degrees of crankshaft rotation. The combination of signals from both sensors can indicate to the ECM when a particular piston is approaching TDC on the compression stroke, should it need to e.g. if a fault occurred with the crankshaft position sensor. However, during normal operation, only the A-bank sensor is used in conjunction with the crankshaft sensor for normal fuelling and ignition functions.

On supercharged engines, one camshaft sensor is fitted to the rear of the B-bank cylinder head and is triggered by a single toothed sensing ring fitted to the rear of the intake camshaft.