Which is better for cleaning the throttle of the fuel injector?

I have classes outside the window. These two friends, do you know anything about car maintenance? Don't talk nonsense if you don't understand! Understand? 1. Clean the fuel nozzle, remove gum and carbon deposit generated during combustion, protect the fuel nozzle and prolong its service life! Improve engine power and reduce fuel consumption! 2. Clean the throttle. Now most cars are electronic throttles. If it is not cleaned frequently, it will cause the vehicle to fail to accelerate, sometimes it is difficult to start the vehicle, and in severe cases, the vehicle cannot start. 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 also prolongs the service life of the throttle valve. 3. Cleaning the air intake is also cleaning the carbon deposit in the air intake and engine combustion chamber. 4. Clean the three-way catalytic converter, clean the carbon deposit produced by incomplete combustion of the engine and the three-way catalytic converter discharged to the exhaust pipe, which is seriously blocked, and the car has no power to return the oil, so the serious car can't start! Clean, but also purify the exhaust emissions! Prolonging service life, cleaning is also an extension of service life for Sanyuan. The above projects are usually done once every two to four weeks!