Hyundai Tucson: Engine Control System / Variable Intake Solenoid (VIS) Valve Description and Operation

Hyundai Tucson (LM) 2010-2015 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).

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

CVVT Oil Control Valve (OCV) Repair procedures
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the OCV connector. 3. Measure resistance between the OCV terminals 1 and 2. 4. Check that the resistance is within the specifi ...

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

Other information:

Hyundai Tucson (LM) 2010-2015 Owners Manual: Automatic transaxle operation
The automatic transaxle has six forward speeds and one reverse speed. The individual speeds are selected automatically in the D (Drive) position. WARNING To reduce the risk of serious injury or death: ALWAYS check the surrounding areas near your vehicle for people, especially children, bef ...

Hyundai Tucson (LM) 2010-2015 Service Manual: Inhibitor Switch Description and Operation
Description Inhibiter Switch contains two contact points. One of these points connects the engine startup when the lever is in the N or P position and turns on the reverse lights. The other contact point monitors the lever's position (PRND) and is used to control gear setting signals. ...

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