How to Clean a Car's Three-Way Catalytic Converter?

[DiPenelope]

Three-way catalytic converters are cleaned using the "drip method." This method involves connecting a plastic hose to the engine's vacuum solenoid valve and relying on the air pressure in the hollow tube to draw the cleaning agent from the infusion bottle into the engine. The cleaning agent then exits through the exhaust pipe, cleaning the three-way catalytic converter in the process. The three-way catalytic converter is the most important external purification device installed in a car's exhaust system. It converts harmful gases such as CO, HC, and NOx emitted from the car's exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. The three-way catalytic converter is typically installed in the first bulge of the exhaust manifold under the car's chassis and resembles a long, kettle-shaped device. The service life of a three-way catalytic converter ranges between 80,000 to 100,000 kilometers. The exact lifespan depends on the car's usage conditions, fuel quality, and driving environment.