Kia Carens: 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 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.

Purge Control Solenoid Valve (PCSV) Repair procedures

Inspection 1. Turn the ignition switch OFF. 2. Disconnect the PCSV connector. 3. Measure resistance betwe ...

CVVT Oil Control Valve (OCV) Specifications

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

Other information:

Kia Carens RP (2013-2018) Owners Manual: Securing a child restraint system with “ISOFIX” system and “Top tether Anchorages”

ISOFIX is a standardised method of fitting child restraint systems that eliminates the need to use the standard adult seat belt to secure the child restraint system in the vehicle. This causes a much more secure and positive location with the added benefit of easier and quicker installation. An ...

Kia Carens RP (2013-2018) Service Manual: Front Wiper Motor Repair procedures

Removal    If you remove a wiper arm, replace it with a new one. If you reassemble the removed arm, its serration wear may cause the wiper to be set off position. If you turn on the wiper while in this ...