Hyundai Santa Fe (TM): Engine Control System / Variable Intake Solenoid (VIS) Valve. Description and operation
Hyundai Santa Fe (TM) 2019-2023 Service and Repair 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).
|
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 |
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the OCV connector. 3.
Specification Item Specification Coil resistance (Ω) 30.0 - 35.0 [20°C (68°F)]
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