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:
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lemon-manuals.org.ua
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Variable Induction Control Valve: Description and Operation
MANIFOLD TUNE VALVE The manifold tune valve (2) opens a crossover passage in that it connects both sides of the intake manifold plenum. It is controlled by a vacuum solenoid (1).
The
PCM controls the MTV solenoid. The manifold tune valve optimizes acoustical tuning of the intake system during wide open throttle operation throughout the RPM range to increase torque.
