The function of the solenoid valve is to realize function switching through the work of the solenoid valve. 1. The solenoid valve is an actuator, and the actuator is directly or indirectly controlled by the computer. By controlling the solenoid valve, the switching between various functions is realized. The most common function switching on a car is the gear change of the transmission. As the vehicle speed increases, the computer controls the action of the solenoid valve, and a solenoid valve switch is made inside the transmission valve body to achieve shifting according to different vehicle speeds. 2. The solenoid valves on the engine include the carbon canister solenoid valve and the vacuum pressure solenoid valve, both of which can change the engine's operating conditions. When the solenoid valve is damaged, the engine cannot run normally, or the engine runs smoothly and the fuel consumption is high. If the solenoid valve is damaged, it can be directly tested by power supply. If the solenoid valve does not operate when power is supplied, the solenoid valve is damaged. Generally, the cost of replacing a solenoid valve is about 100 yuan, and different solenoid valves have different replacement methods.
