Kia Sportage: Engine Control System / Variable Intake Solenoid (VIS) Valve Description and operation

Kia Sportage QL (2015-2025) Service Manual / Engine Control / Fuel System / Engine Control System / Variable Intake Solenoid (VIS) Valve Description and operation

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).

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

Variable Intake Solenoid (VIS) Valve Components and components location
Components 1. Variable Intake Solenoid (VIS) Valve 2. Variable Intake Solenoid (VIS) Actuator 3. Variable Intake Solenoid (VIS) Flap 4. Vacuum Hose ...

Variable Intake Solenoid (VIS) Valve Schematic diagrams
Circuit Diagram Harnness Connector ...

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