How to Thoroughly Clean a Three-Way Catalytic Converter?

[OWeston]

The most effective method to clean a three-way catalytic converter is to completely remove it from the vehicle, soak it in a cleaning agent (such as oxalic acid or toilet cleaner) for a period of time, and then rinse it with clean water. In addition, there are other cleaning methods for the three-way catalytic converter, as detailed below: 1. Adding a cleaning agent to the car's fuel tank: The biggest advantage of this method is its low cost and simplicity. You only need to add the cleaning agent directly to the fuel tank. However, such products have minimal cleaning effect on the three-way catalytic converter because they are almost completely burned out by the time they reach the converter after combustion in the engine. 2. Using a drip cleaning method: Also known as no-disassembly cleaning, this method's biggest advantage is that it does not require removing the three-way catalytic converter. The downside is the high cost of purchasing the cleaning equipment, and the cleaning effect is not guaranteed to be good.