4.30 Variable Valve Timing: Notes

The Variable Valve Timing (VVT) system consists of an actuator built into the camshaft chain sprocket and an Oil Control Valve (OCV) which controls the flow of oil to the camshaft actuator. The system is controlled via the oil control valve and camshaft position sensors. The oil control valve varies the oil flow into the camshaft actuator and creates a variable offset between the camshaft and the camshaft sprocket; feedback for this system is provided by the camshaft position sensors.