Individual Operation
Admission Valve Motor
The admission valve motor is operated by the ECM and it opens and closes the throttle valve.
Admission Valve Position Sensor
These sensors are a kind of potentiometers which transform the admission valve position into output voltage, and emit the voltage signal to the ECM. In addition, these sensors detect the opening and closing speed of the admission valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the admission valve from these signals.