PR25DD engine

Intake manifold runner control valve is integrated to intake manifold.

Courtesy of NISSAN NORTH AMERICA, INC.

Intake manifold runner control valve is mounted each port of the intake manifold and opened/closed by the intake manifold runner control valve motor.

ECM controls the intake manifold runner control valve motor, according to signals of engine speed, water temperature, etc. and stabilizes combustion by generating a strong tumble flow.

INTAKE MANIFOLD RUNNER CONTROL VALVE MOTOR 

Intake manifold runner control valve motor is connected to the rear end of the valve shaft.

Courtesy of NISSAN NORTH AMERICA, INC.

The motor opens or closes the valve by the output signal of the ECM.

INTAKE MANIFOLD RUNNER CONTROL VALVE POSITION SENSOR 

Intake manifold runner control valve position sensor is connected to the front end of the valve shaft.

Courtesy of NISSAN NORTH AMERICA, INC.

The sensor consists of valuable resister. It senses the valve shaft movement and feeds the voltage signals to the ECM.