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: Fuel Tank Air Filter Repair procedures
Replacement 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Lift the vehicle with a jack. 3. Disconnect the canister close valve connector (A). 4. Disconnect the ventilation hose (B) and vapor hose (C). 5. Remove the fuel tank air filter and cani ...

Hyundai Tucson (LM) 2010-2015 Service Manual: Muffler Repair procedures
Removal and Installation Front Muffler 1. Disconnect the front oxygen sensor connector (A) and then remove it from the bracket. 2. Remove the front muffler (B). Tightening torque : 39.2 ~ 58.8 N.m (4.0 ~ 6.0 kgf.m, 28.9 ~ 43.4 lb-ft) When installing, replace wit ...