What is the cleaning method for the three-way catalytic converter?
2 Answers
The cleaning methods for the three-way catalytic converter are: 1. Add cleaning agent to the fuel tank; 2. Perform an intravenous cleaning by using the intake vacuum suction to draw the cleaning agent into the combustion chamber for burning, achieving the purpose of restoring the activity of the three-way catalytic converter through redox reactions inside it; 3. Disassemble and clean by removing the three-way catalytic converter, soaking it in oxalic acid and toilet cleaner, and then rinsing it with clean water. The working principle of the three-way catalytic converter is: when high-temperature automobile exhaust passes through the purification device, the purifying agent in the three-way catalytic converter will enhance the activity of the three gases CO, HC, and NOx, promoting certain redox chemical reactions.
I remember when I cleaned the three-way catalytic converter myself before, I used a no-disassembly cleaning solution. This method is perfect for beginners, as it's super easy to operate: just pour the cleaner into the fuel tank and let the car run for about a hundred kilometers. However, it's important to choose genuine cleaning agents, as fake ones can easily damage the precious metal coating inside the converter. My neighbor once went for a cheap off-brand option, and ended up with blue smoke coming out of the exhaust tailpipe, making the cleaning effect worse. Cleaning is most effective when driving on the highway. Now, every time I refuel, I casually add a bottle of cleaner, which not only prevents carbon buildup but also extends the life of the catalytic converter.
