Kia Optima DL3 Quiz
Engine Control System/Fuel System

Crankshaft Position Sensor (CKPS)

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
4steps
~24min
2/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 4

Description and Operation

Description

  • The Crankshaft Position Sensor (CKPS) detects the position of the crankshaft and is one of the most important sensors in the engine control system.

  • Without an input signal from the CKPS, fuel is not injected, so the vehicle cannot run without the CKPS signal.

  • This sensor is installed on the cylinder block or transmission housing and generates an alternating current by the magnetic flux field created by the sensor and the target wheel while the engine is running.

  • The target wheel has 58 slots and 2 missing slots over 360 degrees. CA (crank angle).

Components and Component Location

Component Location

1. Crankshaft Position Sensor (CKPS)


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 CKPS signal waveform using the KDS.

    Specification: Refer to the Diagnostic Trouble Code Troubleshooting Manual.

Removal

  1. Disconnect the negative battery cable.

  2. Remove the engine room cover.

    (Refer to Engine Mechanical System - "Engine Room Cover")

  3. Disconnect the crankshaft position sensor connector (A).

  4. Remove the crankshaft position sensor (A) after loosening the mounting bolt.

    Tightening Torque: 9.8–11.8 N·m

Installation

  1. Install in the reverse order of removal.

Test yourself

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