Hyundai Santa Fe: Engine Control System / Variable Intake Solenoid (VIS) Valve. Description and operation

Hyundai Santa Fe (TM) 2019-2025 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

Variable Force Solenoid (VFS). Repair procedures

Inspection 1. Turn the ignition switch OFF. 2. Disconnect the OCV connector. 3...

Variable Intake Solenoid (VIS) Valve. Specifications

Other information:

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: Recommended lubricants and capacities

To help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality. The correct lubricants also help promote engine efficiency that results in improved fuel economy. These lubricants and fluids are recommended for use in your vehicle...

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: Air bag - supplemental restraint system

1. Driver’s front air bag 2. Passenger’s front air bag 3. Side air bag 4. Curtain air bag The vehicles are equipped with a Supplemental Air Bag System for the driver’s seat and front passenger’s seats. The front air bags are designed to supplement the three-point seat belts...

Categories

Air bag collision sensors

WARNING

To reduce the risk of an air bag deploying unexpectedly and causing serious injury or death:

Do not hit or allow any objects to impact the locations where air bags or sensors are installed. Do not perform maintenance on or around the air bag sensors. If the location or angle of the sensors is altered, the air bags may deploy when they should not or may not deploy when they should. Installing bumper guards with nongenuine Hyundai or non-equivalent parts may adversely affect the collision and airbag deployment performance. Press the Engine Start/Stop button to the OFF or ACC position and wait for 3 minutes when the vehicle is being towed to prevent inadvertent air bag deployment. Have all air bag repairs performed by an authorized HYUNDAI dealer.