Kia Sedona: Variable Intake Solenoid (VIS) Valve Description and Operation - Engine Control System - Engine Control / Fuel System - Kia Sedona YP Service ManualKia Sedona: Variable Intake Solenoid (VIS) Valve Description and Operation

Third generation YP (2014-2024) / Kia Sedona YP Service Manual / Engine Control / Fuel System / Engine Control System / Variable Intake Solenoid (VIS) Valve Description and Operation

Description
Variable Intake manifold Solenoid (VIS) valves are installed on the intake manifold (VIS Valve 1) and the surge tank (VIS Valve 2). VIS valves 1 and 2 control vacuum modulators that activate valves in the intake manifold and the surge tank. These valves are opened or closed by ECM according to engine condition (Refer to below table).

Engine condition
VIS valve 1
VIS valve 2
Operation
Intake Manifold
Surge Tank
Low  speed
Closed
Closed
Increasing engine performance in low engine speed by reducing intake interference among cylinders
Medium speed
Open or Closed
Open
Increasing intake efficiency
High speed
Open
Open
Minimizing intake resistance by shortening intake manifold length and increasing area of air entrance

Variable Intake Solenoid (VIS) Valve Specifications
Specification ItemSpecificationCoil Resistance (Ω)30.0 ~ 35.0 [20°C(68°F)] ...

Variable Intake Solenoid (VIS) Valve Schematic Diagrams
Circuit Diagram ...

Other Information:

Transaxle Oil Temperature Sensor Specifications
Specification ItemSpecificationType*NTC thermistorTemp.[(°C)°F] / Resistance (kΩ)(-40)-40 / 48.1(-20)-4.0 / 15.6(0)32.0 / 5.88(20)68.0 / 2.51(40)104.0 / 1.19(60)140.0 / 0.61(80)176.0 / 0.32(1 ...

Master Cylinder Repair procedures
Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the air cleaner assembly (A). 3. Disconnect the brake fluid level switch connector (B), and rem ...

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