Description

The variable valve timing system improves both low speed and high speed engine performance, engine idle quality and exhaust emissions. It is a two position system operating on the intake camshafts only. There is the equivalent of 30° of crankshaft movement between the retarded and advanced positions. Engine oil pressure operates the system under the control of the ECM.
For each intake camshaft there is a valve timing unit, a bush carrier assembly and a VVT solenoid.