How to effectively clean the three-way catalytic converter?
2 Answers
The cleaning methods for the three-way catalytic converter: 1. Use oxalic acid solution for cleaning. Remove the three-way catalytic converter, mix the oxalic acid solution with water in a certain proportion, and soak and clean it; 2. Use the drip method. Connect the device output connector to the vacuum tube, start the engine, open the flow control valve, and slowly drip the cleaning agent into the intake tract for cleaning. The three-way catalytic converter is the most important external purification device installed in the automobile exhaust system. It can convert harmful gases such as CO, HC, and NOx emitted by automobile exhaust into harmless carbon dioxide, water, and nitrogen through oxidation-reduction. The use of the three-way catalytic converter will cause carbon deposits in the throttle valve, fuel injector, etc. If not cleaned, the exhaust port will be blocked, resulting in increased exhaust pressure, engine weakness, reduced vehicle power, slow acceleration, and other symptoms.
I've always believed that cleaning the three-way catalytic converter should start with daily maintenance. I personally prefer using automotive catalytic converter cleaner, pouring it into the fuel tank, and then driving the car for about 100-200 kilometers to let the cleaner circulate. This gently dissolves the accumulated carbon and dirt inside, preventing clogging. The key is to use genuine products and avoid off-brands, applying it periodically. Don't attempt to disassemble it yourself, as those tiny holes can be easily damaged. After cleaning, the exhaust becomes cleaner, the car accelerates more smoothly, and you might even save some fuel. Pay attention to regular engine maintenance, don't delay oil changes to avoid contaminating the catalytic converter with impurities. I perform preventive cleaning every three months—simple and efficient.
