Kia Sedona: Variable Intake Solenoid (VIS) Valve Description and Operation
Third generation YP (2014-2026) / 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:
Engine Control Module (ECM) Repair procedures
Removal
1.
Turn ignition switch OFF and disconnect the negative (-) battery terminal.
2.
Remove the battery.
(Refer to Engine Electrical System - "Battery")
3.
Remove the air cleaner asse ...
Components and Components Location
Components Location
1. PCV Valve2. Canister3. Purge Control Solenoid Valve (PCSV)4. Fuel Tank Pressure Sensor (FTPS)5. Canister Close Valve (CCV)6. Fuel Level Sender (FLS)7. Fuel Tank Air Filt ...
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