How to deal with unqualified automobile exhaust detection?

1. For the gas itself: No.97 gasoline can be used in advance. High-grade oil has little pollution. Moreover, it is best to have ethanol gasoline. If ethanol gasoline is mixed with 10% ethanol, the tail gas emission will be correspondingly reduced by 10%.

2. For the throttle: clean the throttle before vehicle inspection.

3. For three-way catalytic converter: 1. On the way to the parking lot, increase the engine speed. Due to the crowded urban roads, stop-and-go, and insufficient combustion, pollutants are attached to the surface of the three-way catalyst. At high speed, the emission of pollutants from gasoline combustion is the lowest, and the high-speed airflow can also wash away the pollutants attached to the ternary system. Second, after checking the appearance of the car, the big foot slammed on the accelerator. Because the optimum working temperature of the three-way catalyst is 400 to 800 degrees, it takes a long time from cold car to 400 degrees. Booming the throttle for a few minutes before detection can make the temperature of the three-way catalyst quickly reach above 400 degrees and keep it hot for a period of time, thus improving the working efficiency. If the above tips still can't pass the exhaust gas detection, then the car condition can't be underestimated. It is very likely that the three-way catalyst needs to be cleaned, and the three-way catalyst needs to be cleaned or replaced with a cleaning agent.