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 Service Manual: Components and Components Location
Components 1. Sub frame2. Steering gearbox3. Front stabilizer bar4. Front lower arm5. Front axle6. Front strut assembly7. Drive shaft ...

Hyundai Tucson (LM) 2010-2015 Service Manual: Starter Relay Repair procedures
Inspection 1. Disconnect the battery negative terminal. 2. Remove the fuse box cover. 3. Remove the starter relay (A). 4. Using an ohmmeter, check that there is continuity between each terminal. TerminalValueMeasure30 - 871Mx or HigherIf there is continuity, replace the relay. ...