Is it necessary to clean the entrance?

It is necessary, if the air intake is not cleaned frequently, it will lead to weak acceleration of the vehicle, sometimes it is difficult to start, and in serious cases it is impossible to start the vehicle. If it goes on for a long time, it will also wear the throttle and spoiler, resulting in high or unstable idle speed. Finally, only a new throttle assembly can solve the problem! Cleaning the inlet also prolongs the service life of the throttle valve.