Hyundai Elantra HD: Engine Control/Fuel System - Hyundai Elantra HD 2006–2010 Service ManualHyundai Elantra HD: Engine Control/Fuel System

CVVT (Continuously Variable Valve Timing) System. Description and Operation
Description The CVVT (Continuously Variable Valve Timing) which is installed on the exhaust camshaft controls intake valve open and close timing in order to improve engine performance. ...