Manual Transmission

Camshaft/Crankshaft Position Sensor:

PURPOSE
The Crankshaft Position (CKP) sensor determines engine speed and crankshaft position and supplies this information as an input signal to the Ignition Control Module (ICM) and Powertrain Control Module (PCM).


CONSTRUCTION
The CKP is a dual photodiode type sensor located within the distributor. It cannot be replaced separately and must be serviced as part of the distributor.

OPERATION
A slotted disc is mounted to the distributor shaft. There are 4 slots cut into the disc, each one corresponding to a cylinder on its compression stroke. As the shaft rotates each slot allows light from a photodiode to strike a photo transistor. The CKP sensor then creates a which is sent to the PCM.