Kia Cee'd: Engine Control System / CVVT Oil Control Valve (OCV) Description and operation

Kia Cee'd JD Service Manual / Fuel System / Engine Control System / CVVT Oil Control Valve (OCV) Description and operation

Description
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 Cee'd JD Owners Manual: Inside rearview mirror
Adjust the rearview mirror so that the center view through the rear window is seen. Make this adjustment before you start driving. WARNING - Rear visibility Do not place objects in the rear seat or cargo area which would interfere with your vision out the rear window. WARNING Do not ...

Kia Cee'd JD Owners Manual: Use high quality ethylene glycol coolant
Your vehicle is delivered with high quality ethylene glycol coolant in the cooling system. It is the only type of coolant that should be used because it helps prevent corrosion in the cooling system, lubricates the water pump and prevents freezing. Be sure to replace or replenish your ...

© 2017-2020 www.kceed.com