After cleaning the throttle, the fuel consumption has increased. What happened?

After cleaning the throttle, the idle speed is unstable and the fuel consumption increases, basically because the throttle opening is not reset. Due to long-term carbon deposition, the carbon deposition squeezes the throttle valve, and the throttle valve opening is correspondingly expanded. When we clean the throttle, if we don't reset it, the throttle opening will remain in the state before carbon deposition, which will lead to an increase in air intake, and in severe cases, the idle speed will be unstable and fuel consumption will increase.

So how do you reset the throttle opening? At present, most cars use electronic throttle, and it is necessary to initialize the throttle with diagnostic instrument and computer to achieve normal idle speed. There are also some old models that use mechanical cable throttle, so these cars will gradually reduce the throttle opening to the initial state in the future, and the idle speed will naturally be stable.

The throttle is like our human "throat", which controls the swallowing of food. Throttle is a controllable valve, which controls air to enter the engine. It has a throttle depth, and the power and suitability of the engine are determined by the throttle opening. As we all know, the air contains dust and sand. When the air passes through the throttle, it will naturally leave impurities on the throttle surface, which together with the oil vapor discharged from the crankcase will lead to the formation of black putty deposits. What's the effect of dirty throttle? First, it must be the power of the engine. Dirty throttle leads to inflexible throttle action, and the air entering the engine carries many impurities, which affects the normal combustion of gasoline and reduces the engine power. The idle speed is seriously unstable, and it is difficult to start, and the power is reduced in the fault state.

Of course, there are also some "coup" ON the Internet, such as cleaning the negative plug of the accelerator battery or turning the key to the ON position for a few minutes after cleaning, then turning it to the ON position, and then starting the car without stepping on the accelerator. This method is useful for some car owners, but not for some car owners. In fact, different models have different reset methods. Of course, the most effective method is to use a computer.

If the fuel consumption or vehicle speed increases after cleaning the throttle, it is mainly because the matching between the throttle and the corresponding computer is not completed. After the matching operation of normal steps is completed, the car will run for a long time, so the owner need not worry too much.