Variable Induction System: Description and Operation

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.