Idle speed controller and throttle position sensor belong to automobile assembly respectively.

You have different answers to this question according to different models, such as "Volkswagen Series", where the idle speed controller and the throttle position sensor are all installed in the throttle body, that is to say, the throttle assembly. Some Japanese cars separate them, but there is still a certain relationship. If they must be qualitative, they should also be independent sets.

The function of the throttle position sensor is to report the throttle opening (angle) to the computer, and the idle controller is called the idle motor, which is used to control the throttle opening when the engine is idling, thus controlling the idle speed of the engine. The idle speed controller also has an independent assembly, such as the bypass pipe type, which controls the opening of the bypass pipe to control the air intake when the engine is idling, thus controlling the idle speed of the engine.