Kia Sorento: CVVT Oil Control Valve (OCV)
Continuous Variable Valve Timing (CVVT) system advances or retards the
valve timing of the intake and exhaust valve in accordance with the ECM control
signal which is calculated by the engine speed and load.
By controlling CVVT, the valve over-lap or under-lap occurs, which makes
better fuel economy and reduces exhaust gases (NOx, HC) and improves engine
performance through reduction of pumping loss, internal EGR effect, improvement
of combustion stability, improvement of volumetric efficiency, and increase
of expansion work.
This system consist of
-the CVVT Oil Control Valve (OCV) which supplies the engine oil to the
cam phaser or cuts the engine oil from the cam phaser in accordance with the
ECM PWM (Pulse With Modulation) control signal,
- the CVVT Oil Temperature Sensor (OTS) which measures the engine oil
temperature,
-and the Cam Phaser which varies the cam phase by using the hydraulic
force of the engine oil.
The engine oil getting out of the CVVT oil control valve varies the cam
phase in the direction (Intake Advance/Exhaust Retard) or opposite direction
(Intake Retard/Exhaust Advance) of the engine rotation by rotating the rotor
connected with the camshaft inside the cam phaser.

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Install the component with the specified torques.
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Item
Specification
Coil Resistance (Ω)
6.9 ~ 7.9 [20°C(68°F)]
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See also:
Yaw-rate and G Sensor Removal
1.
Remove the ignition key from the vehicle.
2.
Disconnect the battery negative cable and wait for at least three
minutes before beginning ...
Condenser Inspection
1.
Check the condenser fins for clogging and damage. If clogged,
clean them with water, and blow them with compressed air. If bent, gently
bend them using a screwdrive ...
ICM Relay Box Inspection
Rear Wiper Motor relay
Check for continuity between the terminals.
1.
There should be continuity between the No.1 and No.3 terminals
when power and ground are conne ...