Kia Optima: Engine Control System / Camshaft Position Sensor (CMPS)
Description and operation
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Camshaft Position Sensor (CMPS) is a hall sensor, which detects the camshaft
position by using a hall element.
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It is synchronized with Crankshaft Position Sensor (CKPS) and detects
the piston position of each cylinder which cannot be detected by the CKPS.
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The two CMPS are installed on engine head cover of bank 1 and 2 (intake,
exhaust) respectively and use a target wheel installed on the camshaft.
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The Camshaft Position Sensor is a hall-effect type sensor.
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As the target wheel passes the Hall sensor, the magnetic field changes
in the sensor.
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The sensor then switches a signal which creates a square wave.
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Components and components location
1. Camshaft Position Sensor (CMPS)
-Exhaust
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2. Camshaft Position Sensor (CMPS)
-Intake
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Schematic diagrams
Harness Connector
Repair procedures
| 1. |
The engine control system can be more quickly diagnosed for troubles
by using the vehicle diagnostic system (KDS). (Refer to "DTC guide")
KDS provides the following information.
| (1) |
Self diagnosis : Inspects and displays diagnostic trouble code
(DTC)
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| (2) |
Sensor data : Checks the system input/output value status
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| (3) |
Forced operation : Checks the system operating status
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| (4) |
Additional function : Controls system options, zero point adjustment
and other functions
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| 1. |
Check signal waveform of CMPS using a KDS.
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Specification : Refer to "DTC diagnostic guide"
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DON’T remove the camshaft position sensor during engine running or right
after engine stops, or a scald by the flowed out engine oil may occur.
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| 1. |
Disconnect the negative battery terminal.
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| 2. |
Disconnect the camshaft position sensor connector (A).
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| 3. |
Remove the camshaft position sensor after loosening the mounting bolt
(B).
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Tightening torque :
9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)
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| 1. |
Disconnect the negative battery terminal.
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| 2. |
Disconnect the camshaft position sensor connector (A).
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| 3. |
Remove the camshaft position sensor after loosening the mounting bolt
(B).
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Tightening torque :
9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)
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Install the component to the specified torque.
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Note that internal damage may occur if the component is dropped.
In this case, inspect the component before installation.
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Apply the engine oil to the O-ring.
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Install in the reverse order of removal.
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Description and operation
Description
•
Crankshaft Position Sensor (CKPS) detects the crankshaft position and
is one of the most important sensors of the engine cont ...
Specifications
Specification
Item
Specification
Capacitance (pF)
850 - 1,150
Description and operation
Descrip ...
Other information:
Air bag Warning Light
This warning light illuminates:
Once you set the ignition switch or Engine Start/Stop Button to the ON position.
- It illuminates for approximately 6 seconds and then goes off.
When there is a malfunction with the SRS.
Recommend you have your vehicle inspected by ...
Components and components location
Component Location
1. Front seat inner shield cover
Repair procedures
Replacement
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When removing with a ...
Crankshaft Position Sensor (CKPS)
Knock Sensor (KS)