What is the principle of the idle control valve?
1 Answers
The working principle of the idle control valve is as follows: The idle control valve is powered by the ignition switch. As long as the ignition switch is turned to the ON position, the idle control valve is energized, and the engine computer controls its circuit grounding. The following is a related introduction to the idle control valve: 1. Function: When the engine idle load increases, the ECU controls the idle control valve to increase the intake air volume, thereby increasing the idle speed and preventing engine speed instability or stalling; when the engine idle load decreases, the ECU controls the idle control valve to reduce the intake air volume, thereby lowering the idle speed. 2. Classification: It can be divided into mechanical idle control valves, solenoid valve idle control valves, rotary valve idle control valves, and stepper motor idle control valves.