Kia Sportage: Engine Control System / CVVT Oil Control Valve (OCV) Description and operation

Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the 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,

-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.

CVVT Oil Control Valve (OCV) Specifications

Specification Item Specification Coil Resistance (Ω) 6.9 - 7.9 [20°C(68°F)] ...

CVVT Oil Control Valve (OCV) Schematic diagrams

Circuit Diagram Terminal Information Terminal Illustration Terminal Function No. Function Connected ...

Other information:

Kia Sportage QL (2015-2025) Service Manual: Special service tools

Special Service Tools Tool Name / Number IIIustration Description Lower arm ball joint remover 0K545-A9100 Removal of front lower arm from front axle Ball joint remover 09 ...

Kia Sportage QL (2015-2025) Owners Manual: Main fuse

If the main fuse is blown, it must be removed as follows: 1. Turn off the engine. 2. Disconnect the negative battery cable. 3. Remove the nuts shown in the picture above. 4. Replace the fuse with a new one of the same rating. 5. Reverse these steps to reinstall the main fuse. ✽ NOTICE The ...