Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
Or, hide this message:
temporarily or
permanently
General
VVT (Variable Valve Timing) SystemVVT (Variable Valve Timing) System controls the cam pulley phase to adjust the valve timing to the optimize timing. The engine oil pressure controls VVT pulley. OCV (Oil Control Valve) is located in front of the cylinder head and changes the pulley phase by changing the engine oil passage. ECM controls OCV solenoid by PWM signal to adjust the phase to the target.
