How many kilometers should Odyssey's throttle and nozzle be cleaned?

General motor vehicles run for 30,000 ~ 50,000 kilometers to clean the fuel injectors once.

If the throttle is not based on kilometers, it depends on the local environment and the cleanliness of the trachea when maintaining the car. You can clean the nozzle every 20,000 kilometers, or you can add nozzle cleaning liquid to the oil tank for cleaning, and the oil amount is directly proportional to the amount of cleaning liquid.

Throttle and injector are two things, one controls air and the other controls fuel.

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, which will be burned to do work. It connects the air filter and the engine block, and is called the throat of the automobile engine.

The injector itself is a normally closed valve, which is controlled by the up-and-down movement of the valve needle. When the ECU sends the fuel injection instruction, its voltage signal will make the current flow through the coil in the fuel injector, generate a magnetic field to attract the valve needle, open the valve, and make the fuel inject by itself.