What's the matter with black smoke, carbon deposit and air leakage from Buick Angkewei exhaust pipe?

Cause of Buick Angkewei's failure: black smoke from carburetor cars is common. This is because the fuel injection quantity of carburetor car is not controlled by computer, but by pedal accelerator. In some cases, too much fuel enters the cylinder and is discharged from the car before burning, which leads to the black smoke we see. There are many reasons for the failure of black smoke. Generally, EFI vehicles emit little black smoke. If there is black smoke, it is probably a fault in the cylinder. & ampLdquo broken cylinder &; Rdquo is a common one. Solution: The EFI vehicle should check the cylinder pipeline every 30,000 km and the spark plug every 1000 km. Replace it in time if there is any problem.