Hyundai Kona: Engine Control System / CVVT Oil Control Valve (OCV) Description and operation

Hyundai Kona (OS) 2018-2021 Service Manual / Engine Control / 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 between th ...

CVVT Oil Control Valve (OCV) Specifications
Specification Item Specification Coil Resistance (Ω) 6.9 - 7.9 [20°C (68°F)] ...

Other information:

Ford Fusion 2013–2020 Owners Manual: Brake Fluid Check
WARNING: Do not use any fluid other than the recommended brake fluid as this will reduce brake efficiency. Use of incorrect fluid could result in the loss of vehicle control, serious personal injury or death. WARNING: Only use brake fluid from a sealed container. Contamination with dirt, wate ...

Hyundai Kona (OS) 2018-2021 Owners Manual: Components of the Tire Mobility Kit
1. Speed-restriction label 2. Sealant bottle and label with speed restriction 3. Filling hose from sealant bottle to wheel 4. Connectors and cable for the power outlet direct connection 5. Holder for the sealant bottle 6. Compressor 7. ON/OFF switch 8. Pressure gauge for displaying the tire infl ...

© 2018-2021 www.hkona.com