Tucson AWD L4-2.4L (2010)
Variable Induction Control Actuator: Description and Operation
Variable Intake Solenoid (VIS) Valve
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 .
