Hyundai Sonata: 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 ...
Variable Intake Solenoid (VIS) Valve. Specifications
Specification
Item
Specification
Coil resistance (Ω)
30.0 ~ 35.0 [20°C(68°F)]
...
See also:
Knock Sensor (KS). Schematic Diagrams
Circuit Diagram
...
Sliding the sunroof
To open or close the sunroof (manual slide feature), pull or push the sunroof
control lever backward or forward to the first detent position.
Pulling the control lever downward also closes the ...
Starting the engine
WARNING
Always wear appropriate shoes when operating your vehicle. Unsuitable shoes
(high heels, ski boots,etc.) may interfere with your ability to use the brake, accelerator
pedal, and clutch (i ...
