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: Smart Key Repair procedures
Smart Key Smart Key Code Saving 1. Connect the DLC cable of GDS to the data link connector (16 pins) in driver side crash pad lower panel, turn the power on GDS. 2. Select the vehicle model and then do "Smart key code saving". 3. After selecting "Smart key teaching" menu, push "Enter" k ...

Hyundai Tucson (NX4) 2022-2023 Owner's Manual: Towing
Towing Service A : Dollies If towing is necessary, contact an authorized HYUNDAI dealer or a commercial tow-truck service. AWD vehicles must be towed with a wheel lift and dollies or flatbed with all the wheels off the ground. 2WD vehicles can be towed with the rear wheels on the gro ...