Intake Manifold Tuning (IMT) Valve System

Engine power is enhanced by closing and opening the intake manifold tuning (IMT) actuator. When the valve is closed, there is high torque at low engine speed. When the valve is open, there is high torque at high engine speed.

The intake manifold tuning (IMT) actuator has a sensor that detects the IMT valve position and sends it to the PCM.

Fig 1: Identifying IMT Actuator, Magnet And Motor

Courtesy of AMERICAN HONDA MOTOR CO., INC.