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Home >> Jaguar >> 2019 >> XF S >> Repair and Diagnosis >> External Pages >> Different car >> Section 200 (Electronic Engine Controls - V8 S/C 5.0L Petrol, Project 8 -- XE/(760)) >> Electronic Engine Controls - V8 S/C 5.0L Petrol, Project 8 (G2261903) >> Description And Operation >> Electronic Engine Controls >> Description >> Camshaft Position Sensor

Camshaft Position Sensor

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The Camshaft Position (CMP) sensors are Hall effect type sensors that allow the Powertrain Control Module (PCM) to determine the angular position of the camshafts. The CMP sensors are of the ferro-magnetic resistance element type and produce a digital output which allows the PCM to detect speeds down to zero.

The 4 CMP sensors are installed in the front upper timing covers, 1 for each camshaft.

Each CMP sensor is secured with a single screw and sealed with an O-ring. On each CMP sensor, a 3 pin electrical connector provides the interface with the engine harness.

The head of each CMP sensor faces a reluctor ring attached to the front of the related Variable Camshaft Timing (VCT) actuator.

If an exhaust CMP sensor fails, the PCM disables the VCT of both exhaust camshafts.

If an intake CMP sensor fails, the PCM disables the VCT of both intake camshafts. This can result in reduced engine performance and slow to start. A failed CMP sensor will not prevent the engine starting.

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