Hyundai Elantra HD: CVVT Oil Control Valve (OCV). Description and Operation - Engine Control System - Engine Control/Fuel System - Hyundai Elantra HD 2006–2010 Service ManualHyundai Elantra HD: CVVT Oil Control Valve (OCV). Description and Operation

Function And Operation Principle

The Continuously Variable Valve Timing (CVVT) system controls the amount of valve overlap by varying the amount of oil flow into an assembly mounted on the intake camshaft through ECM control of an oil control valve. An Oil Temperature Sensor (OTS) is used to allow ECM monitoring of engine oil temperature. As oil is directed into the chambers of the CVVT assembly, the cam phase is changed to suit various performance and emissions requirements..
When camshaft rotates engine rotation-wise: Intake-Advance / Exhaust-Retard
When camshaft rotates counter engine rotation-wise: Intake- Retard / Exhaust- Advance

Idle Speed Control Actuator (ISCA). Repair procedures
Component Inspection 1. Turn ignition switch OFF. 2. Disconnect ISCA connector. 3. Measure resistance between ...

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