Focus L4-2.0L SOHC VIN P (2000)
The IMT valve motorized unit will not be energized below approximately 2600 rpm or higher on some vehicles. The shutter will be in the closed
position not allowing airflow blend to occur in the intake manifold. Above approximately 2600 rpm or higher, the motorized unit will be energized. The
motorized unit will be commanded on by the PCM initially at a 100 percent duty cycle to move the shutter to the open position and then falling to
approximately 50 percent to continue to hold the shutter open.
1. The PCM uses the TP sensor and CKP signals to determine activation of the IMT valve system. There must be a positive change in voltage from
the TP sensor along with the increase in rpm to open the shutter.
2. The PCM uses the information from the input signals to control the IMT valve.
3. When commanded on by the PCM, the motorized actuator shutter opens up the end of the vertical separating wall at high engine speeds to allow
both sides of the manifold to blend together.
