The throttle opening is basically normal.

If it is an idle throttle with a bypass idle valve, it is completely closed. Idle throttle without idle bypass valve is usually around 2%-5%. The normal value of throttle opening is 1.6-5.0, which is normal within this range. Throttle opening refers to the opening angle of engine throttle. Therefore, the accelerator of the automobile engine is operated by the driver with the accelerator pedal, which changes the air intake of the engine and controls the operation of the engine. The working conditions of the engine change with the change of throttle opening. Automobile throttle is a control valve to control air entering the engine. After entering the intake pipe, it is mixed with gasoline to form combustible mixture and participate in combustion. This is very important for a four-stroke gasoline engine. Throttle is the most important part of computer engine system at present. Its upper part is the air filter, and the lower part is the engine body, which is the throat of the automobile engine. Whether the acceleration of a car is flexible or not is also related to the cleanliness of the throttle. The focus of discussion among car owners is whether the accelerator should be removed for cleaning.