Hyundai Genesis (DH): Engine Control System / CVVT Oil Control Valve (OCV) Description and Operation

Hyundai Genesis (DH) 2013-2016 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 consists of
- the CVVT Oil Control Valve (OCV) which supplies the engine oil to the cam phaser or spills 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 which is supplied through 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.

    Inspection 1. Turn the ignition switch OFF. 2. Disconnect the PCSV connector. 3. Measure resistance between the PCSV terminals 1 and 2. 4.

    Specification ItemSpecificationCoil Resistance (?)6.9 ~ 7.9 [20

    Other information:

    Hyundai Genesis (DH) 2013-2016 Service Manual: Description and Operation

    Description System Overview The System offers the following features: - Changing the state of engine ignition and power by using the start button. - Controlling external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition switch.

    Hyundai Genesis (DH) 2013-2016 Service Manual: Troubleshooting

    Troubleshooting Problem Symptoms Table Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor. Use the table below to help you find the cause of the problem.

    Categories

     
    Copyright © 2025 www.hgenesisdh.com - 0.0203