General Information: General Description

The CVVT (Continuously Variable Valve Timing) system is installed on the chain sprocket of the intake camshaft. This system controls the intake camshaft to provide the optimal valve timing for every driving condition. The ECM controls the Oil Control Valve (OCV), based on the signals output from mass air flow sensor, throttle position sensor, and engine coolant temperature sensor. The CVVT controller regulates the intake camshaft angle using oil pressure through the OCV. As a result, the relative position between the camshaft and the crankshaft becomes optimal, the engine torque improves, fuel economy improves, and exhaust emissions decrease under overall driving conditions.