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How to Clean the Three-Way Catalytic Converter?

1 Answers

ColemanFitz

07/30/25 8:43am

Three-way catalytic converter cleaning method: 1. Start the engine and turn it off after the water temperature normalizes; 2. Pour the cleaning agent into a dedicated device and connect the device's output connector to the vacuum tube; 3. Start the engine, maintain the speed at around 2000 RPM, open the flow control valve, and slowly drip the cleaning agent into the intake tract for 30 minutes; 4. After cleaning, keep the engine running for 35 minutes to expel residual liquid. Below is the mechanism of cleaning the three-way catalytic converter: The three-way cleaning agent enters the combustion chamber through the intake vacuum tube and burns, creating a high-temperature oxidizing environment around the three-way purifier. Through redox reactions, it converts sulfur and phosphorus chemical complexes adhering to the surface of the three-way catalyst, as well as incomplete combustion products of gasoline, into sulfur dioxide and carbon dioxide gases, which are then expelled. This achieves the purpose of cleaning the three-way catalytic converter and restoring the activity of the three-way catalyst.

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