Throttle soot can't be started after classic Focus downgraded apc.

Frequent cleaning of the throttle can keep the throttle clean, ensure that the engine does not turn off, and cannot guarantee to reduce the carbon deposition in the engine. It is recommended to install an oil respirator.

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. Throttle four-stroke gasoline engines are generally like this.