Brilliance jinbei emits black smoke.

Black smoke is common in carburetor cars. 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 causes the black smoke we see. For the problem of black smoke, there are many reasons for this phenomenon, such as the fuel passage of the main metering hole or nozzle of the carburetor is too large, the throttle valve of the cold car is stuck, the throttle of the auxiliary room is not closed tightly, or the oil level of the carburetor is too high, and the throttle is too high, which may cause black smoke. It is recommended to go to a Toyota special repair shop for inspection and maintenance. I can't tell what the problem is without seeing the details of your car, but you can check:

Whether the vacuum hose connection (under the throttle) is blocked or not, you can replace it with a new spark plug and start it. If it works for a period of time, take it out and check whether there is carbon deposit in the spark plug. If not, it has been solved. (Some faulty cars will emit black smoke for a long time because of the carbon residue in the exhaust pipe, which costs three yuan Cui Hua. ). Is your throttle position data correct? The oxygen sensor is only an emission sensing element. If the computer fails because of a sensor fault, or the air inlet leaks, the exhaust gas naturally exceeds the standard, and a single car emits black smoke, it is generally a computer fault, and the vacuum signal is inaccurate or even wrong. Have you checked its pulley timing? Pay attention to whether the crankshaft hub is worn or deformed!