Hyundai Santa Fe: 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 specification. Specification: ...
Variable Intake Solenoid (VIS) Valve. Specifications
Specification Item Specification Coil resistance (Ω) 30.0 ~ 35.0 [20°C(68°F)] ...
See also:
Lighting control
Type A Type B The light switch has a Headlight and a Parking light position. To operate the lights, turn the knob at the end of the control lever to one of the following positions: (1) OFF position (2) ...
Transaxle Control Module (TCM). Repair procedures
Removal When replacing the TCM, the vehicle equipped with the immobilizer must be performed procedure as below. [In the case of installing used TCM] 1. Perform "TCM Neutral mode" procedure with ...
Recommended cold tire inflation pressures
All tire pressures (including the spare) should be checked when the tires are cold. “Cold Tires” means the vehicle has not been driven for at least three hours or driven less than 1 mile (1.6 km). ...
