Why should the car be insured after the four clean-ups?

Four clean-ups (throttle, injector, gasoline grille,? )

During the cleaning process, many plugs were removed, and the power supply was cut off, especially when the throttle valve (the valve opening and data changed after cleaning) directly touched the car, and the computer detected that there would be a fault code or unstable idle speed. The common practice is to pull out the fuse and restore the original factory settings to prevent disorderly idling. The best operation is to connect an external computer to recover the data.