Does the three-way catalytic converter need to be cleaned? What is the effect of cleaning the three-way catalytic converter?

threeYuanFor some new drivers, the catalytic converter may not know what it does. As the most important component in the exhaust gas purification system, three-way catalysis is responsible for the catalytic reduction of harmful gases such as carbon monoxide (CO), hydrocarbons (HC) and nitrogen oxides NOx in the exhaust gas: the three-way catalytic reduction of CO, HC and NOx The main harmful gases are catalytically reduced into non-toxic and harmless water (H₂O), carbon dioxide (CO2), nitrogen (N2) and oxygen (O2) and discharged.

Does the three-way catalysis need to be cleaned?

During the long-term use of the three-way catalytic converter, there is no shortage of carbon deposits in the exhaust gas of the engine attached to the porous ceramic carrier. If this happens, it is very likely to block. Once the three-way catalytic converter is clogged, it needs to be cleaned.

About cleaning the three-way catalytic converter

①Additive cleaning:Additive cleaning is to add cleaning agent to the fuel tank. After the vehicle is started, the cleaning agent will enter the combustion chamber along with the gasoline to burn and finally be discharged in the exhaust pipe. Catalyze for cleaning. This method is affordable and easy to operate, but the effect is worrying.

② Disassembly and cleaning:Disassembly and cleaning need to completely disassemble the three-way catalyst and soak and clean with oxalic acid. This method has the best cleaning effect, but the operation is troublesome, time-consuming and laborious, and many 4S shops and repair shops are unwilling to provide disassembly and washing services.

③ Bottle cleaning:The three-way catalyst is cleaned by slinging, which is currently the most mainstream cleaning method, and it is also a cleaning project strongly promoted by 4S shops and repair shops. This method does not need to disassemble the three-way catalyst and is easy to operate; the disadvantage is that the material cost is relatively expensive, and the cleaning effect is better than the former, but compared to the material cost, the cleaning effect is not ideal.