Is it normal for the fuel consumption of the accelerator to suddenly increase after the maintenance of the 4S shop?

Idle jitter and fuel consumption increase after cleaning the throttle, mostly because the throttle opening is not calibrated. Because of the long-term carbon deposition, the carbon deposition squeezes the throttle, and the throttle opening is correspondingly expanded. When you clean the throttle, if there is no calibration, the throttle opening will only stay before carbon deposition, which will also lead to an increase in air flow, idling jitter and obvious fuel consumption.

So how do you reset the throttle opening? At present, most vehicles use electronic accelerator, so it is necessary to reset the accelerator pedal by using the computer of the testing instrument supporting facilities in order to reach the normal waiting speed. Some cash also uses mechanical equipment to pull the accelerator, so these cars will gradually reduce the opening of the accelerator pedal to the initial state in the future, and the speed will naturally stabilize.

The throttle valve is like my "throat", which controls the swallowing of food. The throttle valve is a controllable gate valve, which controls the gas to enter the automobile engine and has a deep throttle valve. The output power of the engine is determined according to the throttle opening. As we all know, the air contains dust and sand. When the air passes through the throttle, it will of course leave residues on the surface of the throttle, and crankcase ventilation will discharge automobile oil vapor, resulting in gray-black putty deposits. Does the dirty accelerator pedal matter? First, it must be the output power of the engine. The dirty accelerator pedal makes it insensitive to movement, and the gas entering the engine carries a lot of residue, which endangers the normal ignition of automobile gasoline and reduces the output power of the engine. The common faults are more serious idle jitter, unstable idle speed and reduced output power.

Naturally, there are also some "tricks" ON the Internet, such as cleaning the negative power plug of the accelerator battery or after cleaning, turning the key into the ON position for a few minutes to turn it off, then turning it to the ON position, and then starting the car without oil supply. In this way, some owners are valid and some owners are invalid. In fact, the calibration methods of different models are different, so the most effective method is naturally computer matching.

If the fuel consumption or speed of cleaning the accelerator increases, it is usually that the matching between the accelerator pedal and the matching computer is not completed. After the normal process is actually running, the car will run for a long time, and the owner does not need to worry.