What happens if you unplug the idle motor wire?
1 Answers
Unplugging the idle motor wire will cause the idle speed to remain fixed at a certain RPM point without any variation. For example, turning on the air conditioning will not increase the corresponding idle speed, and there will be no idle compensation while driving. This can lead to issues such as the vehicle stalling easily, high idle speed, excessive fuel consumption, and other faults. How the idle motor works: The idle motor is a component that regulates the idle speed of a car. When the engine is running without any load, it is called idling. During idling, the idle motor adjusts the cross-sectional area of the idle air passage according to the engine temperature and load, ensuring that the engine maintains the optimal idle speed under different conditions. Functions: The primary function of the idle motor is to manage the car's idle speed. Its main purpose is to adjust the idle speed based on the engine load during idling. The idle stepper motor is mounted on the throttle body and is controlled by the engine control unit to regulate the engine idle speed. When the engine speed deviates from the idle speed, the throttle valve takes over, controlling the amount of air entering the intake manifold, which is mechanically operated by the accelerator pedal cable. The throttle body includes a bypass air passage that supplies air during engine idling (when the throttle valve is closed).
