After the car struck a fire, the idle speed went up and down, and then it turned off. What is the reason?

Hello, this situation may be that the throttle idle motor is damaged. After this happens, the throttle should be replaced. The throttle is called the throat of the engine. The throttle valve is used to control the intake of the engine. The throttle valve will be fixed at the head of the engine intake manifold.

After the driver steps on the accelerator pedal, the throttle opening will become larger, which can increase the air intake of the engine.

When the accelerator pedal is released, the opening of the throttle will be smaller, so the amount of air entering the engine will also be less.

If the sensor detects an increase in the amount of air entering the engine, it will increase the fuel injection, thus increasing the engine speed.

If the sensor detects a decrease in intake air, it will reduce fuel injection, so that the engine speed will decrease.

Throttle is very important for the normal operation of the engine. If the throttle valve is damaged, the engine will not run normally.

When the engine is idling, the idle motor on the throttle is used to control air intake. If the idling motor is damaged, it will lead to unstable idling and flameout of the engine.

After the idle motor is damaged, only the throttle can be replaced.

After replacing the new throttle, it is recommended that you re-match the computer of the engine, otherwise the fuel consumption of the engine will increase.

After cleaning the throttle, you have to match the engine computer.