Kia Forte: Variable Intake Solenoid (VIS) Valve Description - Engine Control System - Engine Control / Fuel System - Kia Forte TD 2014-2018 Service ManualKia Forte: Variable Intake Solenoid (VIS) Valve Description

Second generation YD (2014-2018) / Kia Forte TD 2014-2018 Service Manual / Engine Control / Fuel System / Engine Control System / Variable Intake Solenoid (VIS) Valve Description

Variable Intake manifold Solenoid (VIS) valve is installed on the intake manifold. The VIS valve controls the vacuum modulator which activates a valve in the intake manifold. The ECM opens or closes this valve according to engine condition (Refer to below table).

Engine condition
VIS valve
Operation
Medium speed
Closed
Increasing engine performance in low engine speed by reducing intake interference among cylinders
Low / High speed
Open
Minimizing intake resistance by shortening intake manifold length and increasing area of air entrance

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Variable Intake Solenoid (VIS) Valve Specification
Item Specification Coil resistance (Ω) 30.0 ~ 35.0 [20∞C(68∞F)] ...

See also:

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