Doing carbon deposit cleaning is a very basic way for car maintenance, especially old car owners, who know how much carbon deposits affect the car. The reason why most of the old cars is not as good as the initial state is that on the one hand, various zeros The aging of components, on the other hand, is caused by the accumulation of carbon deposits. If the car keeps driving but never actively removes the carbon deposits, after two years, the performance of the car will decline significantly, fuel consumption will be significantly improved, and power will be significantly reduced.
Carbon deposit cleaning is actually divided into many types, because there are many places where carbon deposits exist, such as inside the engine, exhaust pipes, throttles, etc., there may be a lot of carbon deposits, and the cleaning methods are different. For the throttle valve, the main thing is to disassemble it, clean it thoroughly with a cleaning agent, and then reinstall it. Some car owners who are attentive have discovered a phenomenon that the car is idling after the throttle is cleaned. The engine speed has increased significantly. What's going on? The mechanic tells you why.
To answer the whole question, in fact, the first thing to know is what happens to the throttle after the formation of carbon deposits. The throttle valve controls the intake air volume through the degree of opening. The larger the throttle flap is opened, the more air intake will be. However, after the formation of carbon deposits, the carbon deposits will prevent the throttle from operating, causing it to open when needed. At that time, the opening degree is actually not enough, which leads to less air intake. If you step on the accelerator pedal to the same degree, the power of the car is obviously not as strong as in the past, so the engine speed will also drop.
However, the engine speed does not keep dropping. The car is still an ECU system. It has an automatic adjustment function. When the engine speed is significantly lower than the standard speed, the car's ECU will increase the speed to ensure that the engine can work normally. The opening of the large throttle increases the intake air volume and realizes the normal engine speed. Then the problem comes at this time. At this time, if the carbon deposit that affects the operation of the throttle is removed, then when the engine is started, the ECU of the car does not know that the condition of the throttle has changed, and the throttle opening is still Drive it as if there is carbon deposits, so more fuel and air enter the combustion chamber at this time to produce stronger power, and the engine speed becomes higher than before.
Some cars will report engine failure after the throttle is cleaned. This is actually the reason, but the car can still run normally at this time. After a period of time, the car ECU will gradually adjust, because of this When the engine speed is obviously a bit high. However, if it is cleaning the carbon deposit on the throttle in a repair shop or 4S shop, if such a problem occurs, they can directly use the computer to adjust it.
In fact, cleaning the throttle valve itself is very simple. You only need to know how to remove the screws and prepare a dedicated throttle cleaner. If you don’t want to be too troublesome, you can directly spray the cleaner on the throttle to resolve the above product. Carbon and oil stains can achieve a certain cleaning effect. If you want to clean more thoroughly, you need to completely remove the entire throttle and clean it with detergent.
