Component Description

Power Valve

The power valve is installed in intake manifold collector and used to control the suction passage of the variable induction air control system. It is set in the fully closed or fully opened position by the power valve actuator operated by the vacuum saved in the surge tank. The vacuum in the surge tank is controlled by the VIAS control solenoid valve.

Fig 1: Identifying VIAS Control Solenoid Valve & Power Valve Actuator

Courtesy of NISSAN NORTH AMERICA, INC.

VIAS Control Solenoid Valve

The VIAS control solenoid valve cuts the intake manifold vacuum signal for power valve control. It responds to ON/OFF signals from the ECM. When the solenoid is off, the vacuum signal from the intake manifold is cut. When the ECM sends an ON signal the coil pulls the plunger downward and feeds the vacuum signal to the power valve actuator.

Fig 2: Identifying VIAS Control Solenoid Valve & Power Valve Actuator

Courtesy of NISSAN NORTH AMERICA, INC.