What are the benefits of cleaning agent for air intake system in automobile colleges? What happens if you don't use it?

Through years of experience and many real vehicle test results, I summarize the functions of engine intake system components as follows: 1,

Dissolve and clean the paint film attached to the throttle valve and idle speed control valve to eliminate the abnormal idle speed and acceleration and deceleration caused by its stagnant motion; 2、

Remove the deposition and covering of temperature/pressure sensors by deposits, so as to prevent the ECU from being poorly controlled due to the lack of sensor signals, and then cause other engine control abnormalities; 3, the heat exchange efficiency of the air inlet is restored by cleaning, so as to prevent the air density from decreasing due to poor heat dissipation, the inflation efficiency from decreasing, and the power of the engine from being damaged at high temperature; 4、

For the attached deposits on the intake valve seat, the adsorption and wall loss of fuel are eliminated by dissolution and removal, and the dynamic air-fuel ratio set by ECU is restored; 5、

In view of the intake valve deposits, the phenomenon that the intake valve sticks to the valve and is not tightly closed is eliminated, so as to prevent the engine from starting with excessive resistance and insufficient cylinder pressure, resulting in difficult cold start, insufficient power and increased fuel consumption. This kind of cleaning is more professional, usually in auto repair shops or 4S shops. Personally, it is not recommended.