Santa Fe FWD V6-3.3L (2009)
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Variable Induction Control Actuator: Description and Operation
Function And Operation Principle
Variable Intake Solenoid (VIS) Valve is installed on the intake manifold and changes the effective length of the intake passenger to improve intake
efficiency under varying engine conditions.
1. Low/Middle Speed: VIS Valve Close -> Resonation Effect -> Improving Intake Efficiency
2. High Speed: VIS Valve Open -> Improving Intake Inertia Effect -> Improving Intake Efficiency