Kia Picanto: Engine Control System / Camshaft Position Sensor (CMPS)

Kia Picanto JA 2017-2022 Service & Repair Manual / Engine Control / Fuel System / Engine Control System / Camshaft Position Sensor (CMPS)

Specifications
Camshaft Position Sensor (CMPS)
Item
Specification
Type
Hall effect type
Air Gap (mm)
0.5 - 1.5
Pin
3

Description and operation
Description
The Camshaft Position Sensor (CMPS) is used for detecting the camshaft position by using a hall element, and is also called the hall sensor. Installed on engine head cover, the CMPS uses a target wheel installed on the camshaft to determine the position of each piston that cannot be detected by CKPS. It is equipped with a hall-effect IC whose output voltage changes when magnetic field is applied to the IC with current flow. Hence, the sequential injection of each cylinder is possible with CMPS signal.

Schematic diagrams
Circuit Diagram
[A/T]

[M/T]

Repair procedures
Inspection
1.
Check the signal waveform of the CMPS and CKPS using the KDS.
Specification: Refer to “Wave Form”
Removal
   
DO NOT remove the camshaft position sensor while the engine is running or immediately after turning off the engine as the part and engine oil are hot and can cause burns.
[Bank 1 / Intake]
1.
Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
2.
Remove the air cleaner.
(Refer to Engine Mechanical System - “Air Cleaner”)
3.
Disconnect the camshaft position sensor connector (A).
4.
Remove the sensor (B) by loosening the mounting bolt.
Camshaft position sensor mounting bolt:
9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

[Bank 1 / Exhaust]
1.
Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
2.
Remove the air cleaner.
(Refer to Engine Mechanical System - “Air Cleaner”)
3.
Disconnect the camshaft position sensor connector (A).
4.
Remove the sensor (B) by loosening the mounting bolt.
Camshaft position sensor mounting bolt:
9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

Installation
   
Install the component to the specified torques.
Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.
Apply engine oil to the O-ring.
Carefully insert the sensor into the installation hole without damaging it.
Be careful not to damage the sensor housing and the connector.
Be careful not to damage the O-ring.
1.
Install in the reverse order of removal.
Troubleshooting
Wave Form

Crankshaft Position Sensor (CKPS)
Specifications Specification NON- ISG Item Specification Type Magnetic field sensitive type Coil Resistance (Ω) 819 - ...

Knock Sensor (KS)
Specifications Specification Item Specification Resistance(MΩ) 4.87 Capacitance (pF) 850 - 1150 Type Piezo-electricity Pin 2 ...

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