What should I do if the annual inspection of automobile exhaust exceeds the standard?

carThe main reasons for the annual exhaust gas inspection exceeding the standard are:Three-way catalytic converterPoisoning and failure of the three-way catalytic converter.

The three-way catalytic converter is poisoned because of the high sulfur content of gasoline.lubricating oilIt is caused by the use of sulfur-phosphorus antioxidants and road congestion.

Three-way catalytic converter failure is divided into reversible failure and irreversible failure. Reversible failure is caused by the overdue use of the three-way catalytic converter and high temperature deactivation of the catalyst. Irreversible failure is caused by the sintering damage of the three-way catalytic converter.

What should I do if the annual inspection of automobile exhaust exceeds the standard? The first is to correctly determine the cause of the excess according to the exhaust gas steady-state simple working condition detection value: if the detection value is CO: below 0.05, NO: above 1000 or CO: above 1, NO: below 100, the cause of the excess is the poisoning of the three-way catalytic converter. If the detected value is CO: about 0.5 (range 0.1-0.9), NO: about 2000 (range 1000-3000), the reason for exceeding the standard is the failure of the three-way catalytic converter.

If the three-way catalytic converter is poisoned, goAuto partsBuy a bottle of three yuan in the marketdetergent(The cleaning agent must be purchased from the Quanshuang brand with a capacity of 1000 ml, other products are invalid) Do a three-way cleaning and maintenance of the engine, and the annual exhaust gas inspection after the maintenance can meet the standard.

If the three-way catalytic converter fails, it is necessary to further determine whether it is reversible or irreversible. The method is to go to the auto parts market to buy a bottle of "Quan Shuang brand ternary curing agent" for a three-dimensional maintenance of the engine, and it emits during the curing process. The smell of sulfur dioxide is reversible failure, and vice versa is irreversible failure.

The reversible failure of the three-way catalytic converter can be solved through three-way regeneration and maintenance by using the "Quan Shuang brand three-way regenerant" product. If the car has driven more than 100,000 kilometers, it is best to perform three-way cleaning and maintenance at the same time.

If the three-way catalytic converter fails irreversibly, the three-way catalytic converter must be replaced. The replacement of the three-way catalytic converter must be replaced by the original one. The three-way catalytic converters on the market for several hundred dollars will fail in a short time.