Buick Excelle idle motor voltage several volts.

When idling, the cross-sectional area of idle air passage is changed according to the temperature and load of the engine, so that the engine has the best idle speed under different working conditions.

Idle motor is mainly used to bear the idle speed of the car, and its purpose is to adjust the idle speed according to the engine load when idling. Idle stepper motor is installed on the throttle body and used by the engine controller to control the idle speed of the engine. When the engine speed deviates from the idle speed, it is adjusted by the throttle valve to control the amount of air entering the intake manifold, which is mechanically operated by the accelerator pedal wire rope.