1, the car equipped with a Direct- Fit Three Way Catalytic can not use leaded gasoline, because after the combustion of lead-containing oil, lead particles with the exhaust gas discharged through the Three Way Catalytic Converter, will cover the surface of the catalyst, the catalyst area is reduced, thus greatly reducing the conversion efficiency of the Catalytic Converter, resulting in lead poisoning of the Exhaust Pipe Catalytic Converter. 2, should avoid the unburned mixture into the catalytic converter. The temperature at which the three-way catalyst begins to work is about 200 degrees Celsius, the best working temperature is 400 degrees Celsius to 800 degrees Celsius, and the precious metal composition of the catalyst itself will also produce chemical changes after more than 1000 degrees Celsius, so that the effective catalyst composition in the catalyst is reduced, so that the catalytic effect is weakened. Therefore, the following situations should be excluded during the use of the vehicle:
One is too long idle idle; Second, the ignition time is too late; Three, individual cylinder fire does not work; Fourth, it is difficult to start; Fifth, the mixture is too strong; Six is engine oil burning, seven is oxygen sensor failure; Eight, the water temperature caused by poor heat dissipation is too high.
3, driving on the uneven road should pay special attention not to "support the bottom", because most of the internal catalyst is the catalyst carrier formed by honeycomb pottery, easy to break after collision, so that the catalyst failure and exhaust pipe blockage.
4, abnormal working conditions, such as tempering or repetitive stall, should be stopped in time for inspection, because these conditions can lead to permanent damage to the catalytic converter.
5. Do not cut off the ignition switch in a moving vehicle.
6, do a good job in the vehicle maintenance of the three-way catalytic converter inspection. The contents of the inspection are: the exhaust pipe has a normal sound, which is usually caused by the exhaust pipe joint loosening, the three-way catalyst damage, the catalyst replacement plug loosening and other reasons; The exhaust pipe has no appearance damage such as cracking or shell flattening; Whether catalyst particles are discharged from the exhaust tailpipe. If the three-way catalyst housing is damaged or the exhaust tailpipe discharges particles, it needs to be replaced.
There are two methods of regeneration, namely wet method and fire method.
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