LX470 — NEW FEATURES 14 5. Valve Mechanism According to the addition of the VVT-i system, the intake camshaft is changed as follows. A VVT-i controller is installed on the front of the intake camshaft to vary the intake valve timing. A timing rotor for the VVT-i sensor is provided on the intake camshaft. An oil passage is provided in the intake camshaft in order to supply engine oil to the VVT-i controller. Timing Rotor Oil Passages 273GX64