Besides the routine items of car maintenance, should the throttle and carbon deposit be cleaned? What is the basis?

It should be that besides routine maintenance, the accelerator and carbon deposits should also be cleaned, but it is not necessary to do it every time, because routine maintenance projects need to be done every 5,000 kilometers, and the accelerator and carbon deposits do not need to be cleaned so frequently, only once every 20,000-40,000 kilometers. But this is just a reference value for everyone. The specific cleaning cycle will be determined according to the frequency of personal car use, the air environment of car use, the type of oil used, the interval of changing air filters and driving habits.