Kia Optima: Engine Control System / Crankshaft Position Sensor (CKPS)
Description and operation
| • |
Crankshaft Position Sensor (CKPS) detects the crankshaft position and
is one of the most important sensors of the engine control system.
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| • |
If there is no CKPS signal input, fuel is not supplied. That is, vehicle
can't run without CKPS signal.
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| • |
This sensor is installed on the cylinder block or the transaxle housing
and generates alternating current by magnetic flux field which is made by
the sensor and the target wheel when engine runs.
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The target wheel consists of 58 slots and 2 missing slots on 360 degrees
CA (Crank Angle).
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Components and components location
1. Crankshaft Position Sensor
(CKPS)
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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 CKPS using a KDS.
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Specification : Refer to "DTC diagnostic guide"
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| 1. |
Disconnect the negative battery terminal.
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| 2. |
Remove the engine room under cover.
(Refer to Engine Mechanical System - "Engine Room Under Cover")
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| 3. |
Disconnect the crankshaft position sensor connector (A).
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| 4. |
Remove the crankshaft position sensor (A) after loosening the mounting
bolt.
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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 with the specified torque.
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Note that internal damage may occur when the component is dropped.
In this case, use it after inspecting.
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| • |
Apply the engine oil to the O-ring.
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| 1. |
Install in the reverse order of removal.
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Specifications
Specification
Temperature
Resistance (kΩ)
°C
°F
45
113
244.8 - 281.4
...
Description and operation
Description
•
Camshaft Position Sensor (CMPS) is a hall sensor, which detects the camshaft
position by using a hall element.
...
Other information:
■ Type A
■ Type B
■ Type C
The drive mode may be selected according to the driver’s preference or road condition.
The mode changes whenever the DRIVE MODE button is pressed.
ECO mode (Active ECO)
Active ECO helps improve fuel efficiency by controlling certain engine and trans ...
1. Open the trunk lid.
2. Loosen the retaining screw of the trunk lid cover and then remove the cover.
3. Remove the socket from the assembly by turning the socket counterclockwise
until the tabs on the socket align with the slots on the assembly.
4. Remove the bulb from bulb-socket by pull ...
Engine Coolant Temperature Sensor (ECTS)
Camshaft Position Sensor (CMPS)