The accelerator of the car is broken. What watch is it?

When the throttle valve is broken, the idle speed will be unstable, and there will be no idle speed, so it is difficult to accelerate the start.

The throttle controls the intake of the engine, and the accelerator pedal controls the throttle, not the fuel injection. After the driver steps on the accelerator pedal, the ecu receives the signal, and then the ecu adjusts the accelerator opening. When the throttle opening becomes larger, the fuel injection quantity will also increase accordingly.

When idling, the throttle will have an idle valve to control the amount of air entering the engine. If the throttle valve is damaged, it will lead to unstable idle speed or even no idle speed.

Some cars are very easy to stall when idling, and only when the driver keeps stepping on the accelerator can they not stall, so this is the phenomenon of not idling.

Serious carbon deposition on the throttle may also lead to unstable idle speed, and it is necessary to clean up the carbon deposition after this problem occurs. When cleaning the carbon deposit, it is necessary to remove the throttle first, and then clean it with a professional cleaning agent. You need to wipe it with a special cloth after cleaning. After the carbon deposit is cleaned and put back, it is best to re-match the ecu, otherwise it may increase fuel consumption.

Don't add inferior gasoline to the car at ordinary times, which will aggravate the carbon deposition in the throttle or cylinder.

Some in-cylinder direct injection engines are very prone to carbon deposition. It is suggested that the owners of in-cylinder direct injection engines clean up the carbon deposits every 20,000 kilometers. A better method to remove carbon deposits is walnut sand cleaning.