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Home >> Kia >> 2017 >> Forte LX, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 172 (Engine Control System) >> Camshaft Position Sensor (CMPS) >> Description And Operation >> Description

Description And Operation: Description

WARNING: This page is about a different car, the 2017 Kia Niro. However, it is still accessible from the selected car via links, so may be relevant.

Camshaft Position Sensor (CMPS) is a hall sensor, which detects the camshaft position by using a hall element.

It is related with Crankshaft Position Sensor (CKPS) and detects the piston position of each cylinder which cannot be detected by the CKPS.

The CMPS is installed on engine head cover and uses a target wheel installed on the camshaft. The Camshaft Position Sensor is a hall-effect type sensor. As the target wheel passes the Hall sensor, the magnetic field changes in the sensor. The sensor then switches a signal which creates a square wave.

Fig 1: Camshaft Position Sensor (CMPS)
G12335800Courtesy of KIA MOTORS AMERICA, INC.