How often should the magic throttle be cleaned?

In fact, there is no fixed cycle for how many kilometers the throttle is cleaned. If we have to add a time limit, it will probably be 1 10,000 kilometers. However, the speed of pollution is closely related to the driving environment and the frequency of replacing air filters. The source of dirty throttle mainly comes from two aspects, one is the steam of engine oil, and the dust that the air filter has not been cleaned. When the engine oil runs in the engine block, it will undergo high temperature and volatilize into steam. Separated by the crankshaft ventilation device, one part will return to the bottom of the oil again, and the other part will enter the cylinder for combustion through the throttle (which is also the reason why some cars burn oil). This part of the oil vapor is mixed with the dirty dust filtered by the air cleaner. Formed dirty sludge. So you understand why the throttle is dirty. As for whether you can clean it yourself, the answer is to treat it differently for different models. This is related to the position of the vehicle throttle and whether professional tools are needed for computer initialization. Let's take the public as an example. The throttle position of Volkswagen EA2 1 1 engine is particularly easy to disassemble. This may not stop our DIY. If you change to EA888 engine, it may be difficult for a master who has learned to repair cars for a short time, and then the owner's friends may not have that ability. After disassembly, a special computer is needed for initialization settings, and some cars do not. You can also disconnect the battery cable directly. So, if you meet a car that is easy to disassemble and does not need computer settings, DIY is also possible. If not, forget it. Don't bother. As for whether it will affect the idle speed and fuel consumption, it depends on the degree of dirt. In general, the throttle can tolerate a certain amount of dirt and can adjust itself. If described in technical terms, it should be said that the general adaptation range is 2-5 degrees, which refers to the angle of throttle idling. Sludge will block the opening clearance of the throttle itself, so the throttle has to adjust the clearance by itself to maintain the set idle intake. Exceeding this self-regulation range will cause flameout, unstable idle speed and high fuel consumption. In addition, we do computer initialization, which is to make the computer adapt to a clean state as soon as possible. Forget the process of self-study before.