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:
Jack and tools
The jack, jack handle, and wheel lug nut wrench are stored in the luggage compartment.
Pull up the luggage box cover to reach this equipment.
(1) Jack handle (2) Jack (3) Wheel lug nut wrench
...
Programming HomeLink
✽ NOTICE
When programming a garage door opener, it is advised to park the vehicle
outside of the garage.
It is recommended that a new battery be placed in the hand-held transmitter
...
Front Wiper Motor. Repair procedures
Removal
1.
Loosen the windshield wiper arm nut (A) after removing a wiper
cap (B).
2.
Remove the windshield wiper arm and blade (A ...
