Where is the idle valve of Baojun 730?

The idle valve of Baojun 730 is on the airway next to the throttle. When idling, the throttle valve is closed, and the airflow enters the air inlet through the idling control valve. Air flow sensor, also known as air flow meter, is one of the important sensors of EFI engine. It converts the intake air flow into an electrical signal and sends it to the electronic control unit (ECU) as one of the basic signals to determine the fuel injection quantity.

Working principle of idle valve

When the engine coolant temperature is low, the idle speed control valve is opened to obtain a suitable fast idle speed. According to different coolant temperatures, the computer controls the position of the plunger of the idle control valve by changing the signal intensity transmitted to it. The idle speed control valve of stepping motor is the most widely used idle speed control device in the world. It uses the stepping signal provided by the system to make the rotor rotate forward or backward, and the valve core (screw) expands and contracts to adjust the cross section of the bypass airway, thus stabilizing the idle speed and achieving the ideal idle speed.