What is the performance of an automatic car with dirty throttle?

The performance of dirty throttle in automatic transmission: 1, dirty throttle in the initial stage is unstable idle speed when starting or waiting for the red light brake engine speed to drop to 500 rpm; 2. In severe cases, there will be no car, and the engine fault indicator light will be on. Cleaning the throttle valve is relatively simple. Remove the air intake pipe, four throttle fixing bolts and cooling water pipes, then unplug the throttle position sensor and remove the throttle body for cleaning. 3. After washing the accelerator, learn the idle speed with Nissan special diagnostic instrument. Throttle is the most important part in the engine system of EFI vehicle today. Its upper part is the air filter, and the lower part is the engine block, which is the throat of the automobile engine. Whether the acceleration of a car is flexible is closely related to the cleanliness of the throttle.