What is the reason why the throttle automatically closes after the Toyota EFI diesel engine catches fire?

There are many faults in the throttle: for example, it can't be started or the throttle doesn't return after starting, black smoke, high fuel consumption, high idle speed and poor acceleration are all signs that the throttle is broken.

Throttle is a controllable valve that controls air to enter the engine. After the air enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, and the combustion is successful. It connects the air filter and the engine block, and is called the throat of the automobile engine. Whether the acceleration of a car is flexible or not has a lot to do with the dirt of the throttle. Cleaning the throttle can reduce fuel consumption and make the engine flexible and energetic.

Correct and standardized throttle cleaning can ensure the normal operation of the engine, but the cleaning must be controlled. Excessive cleaning will lead to premature scrapping of the throttle. Frequent cleaning will cause the special coating of the throttle cavity to be washed away gradually, and the inner cavity will lose its coating, which will easily lead to greasy adhesion, thus forming a vicious circle, and the final result will be scrapping.