Idle speed is unstable. Do you want to fix the throttle?

Idle instability is mostly caused by serious carbon deposition on the throttle or problems with the throttle idle control mechanism. You'd better have it repaired after the idle speed is unstable. After the engine is used for a long time, there will be some carbon deposit on the back of the throttle, and too much carbon deposit will lead to unstable idle speed of the engine. The driver can go to the repair shop and ask the technician to remove the throttle valve, clean it and reinstall it. After the throttle is re-installed, it should be re-equipped, otherwise the fuel consumption of the car will increase in a short time. The electronic control unit of automobile engine has strong learning ability. When ecu detects carbon deposition on the throttle, it will adopt another control logic to control the throttle opening. After the riders clean up the carbon deposits on the throttle, if the ecu does not match, they still use the control logic with carbon deposits on the throttle to control the throttle without carbon deposits, which will lead to an increase in vehicle fuel consumption. If it does not match, it will only lead to an increase in fuel consumption in a short time. After working for a few days, ecu detects that there is no carbon deposit on the accelerator, and the fuel consumption will return to normal level. There is an idle speed control valve on the throttle. If there is something wrong with this valve, it will also lead to unstable idle speed of the car.