What are the methods for cleaning a three-way catalytic converter?

[August]

Currently, the mainstream cleaning methods for three-way catalytic converters are additive cleaning and drip cleaning. However, neither additive cleaning nor drip cleaning provides a very high level of cleaning effectiveness for the three-way catalytic converter. For a more thorough cleaning, the only option is to remove and clean it manually. However, due to the relative complexity, time consumption, and effort required, most 4S shops and repair shops do not offer this disassembly cleaning service. The specific operation steps are as follows: 1. First, use a lift to raise the vehicle and completely remove the three-way catalytic converter. 2. Soak and clean the three-way catalytic converter with an oxalic acid solution (mixed with water at a ratio of 1:10), then rinse it thoroughly with clean water. 3. Reinstall the cleaned three-way catalytic converter back into the vehicle and start a test drive.