Kia Optima DL3 Quiz
Engine Control System/Fuel System

Camshaft Position Sensor (CMPS)

In this manual: Engine Control System/Fuel System
General Information — 8Advanced Driver Assistance System (ADAS) — 21Maintenance — 27Engine Mechanical System — 45Engine Electrical System — 11Emission Control System — 11Engine Control System/Fuel System — 25Automatic Transmission — 20Drive Shaft and Axle — 7Suspension System — 22Steering — 7Restraints — 11Brake System — 22Body (Interior and Exterior) — 116Body Electrical System — 90Heating, Ventilation, and Air Conditioning — 32
6steps
~36min
2/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 6

Description and Operation

Description

  • The Camshaft Position Sensor (CMPS) is a Hall sensor that detects the camshaft position using a Hall element.

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

  • Two CMPS are installed on the cylinder head cover for Bank 1 and Bank 2 (Intake, Exhaust) respectively and use the target wheel installed on the camshaft.

  • The camshaft position sensor is a Hall sensor.

  • When the target wheel passes the Hall sensor, the magnetic field changes in the sensor.

  • Then the sensor switches the signal, which generates a square wave.

Components and Component Location

Component Location

1. Camshaft Position Sensor (CMPS) - Exhaust 2. Camshaft Position Sensor (CMPS) - Intake

Circuit Diagrams

Wiring Diagram

Harness Connector

Repair Procedures

Inspection

  1. The engine control system can be diagnosed more quickly for malfunctions using the Kia Diagnostic System (KDS). (Refer to Diagnostic Trouble Code Guide)

    KDS provides the following information.

    1. Self-diagnosis: Checks and displays diagnostic trouble codes (DTC).

    2. Data list: Checks the input/output values of the system.

    3. Active test: Checks the operating condition of the system.

    4. Additional functions: System option control, zero point adjustment, and other functions.

Component Inspection

  1. Check the CMPS signal waveform using the KDS.

    Specification: Refer to the Diagnostic Trouble Code Troubleshooting Manual.

Removal

[Intake]

  1. Disconnect the negative battery cable.

  2. Disconnect the camshaft position sensor connector (A).

  3. Loosen the mounting bolt (B) and remove the camshaft position sensor.

    Tightening Torque: 9.8–11.8 N·m

[Exhaust]

  1. Disconnect the negative battery cable.

  2. Disconnect the camshaft position sensor connector (A).

  3. Loosen the mounting bolt (B) and remove the camshaft position sensor.

    Tightening Torque: 9.8–11.8 N·m

Installation

  1. Install in the reverse order of removal.

Test yourself

A quick Kia Optima DL3 quiz: every answer comes with an explanation and a link to the manual page.