Does the Three-Way Catalytic Converter Need Regular Cleaning?
2 Answers
The three-way catalytic converter requires regular cleaning. The use of gasoline with high sulfur and phosphorus content can form chemical deposits on the surface of the oxygen sensor and the three-way catalytic converter. Stop-and-go driving conditions may lead to incomplete fuel combustion, and the byproducts of incomplete combustion can adhere to the surface of the three-way catalytic converter. Additionally, during the cleaning of fuel injectors, throttle valves, and intake tracts, carbon deposits and particulate matter can contaminate the three-way catalytic converter. Relevant information about the three-way catalytic converter is as follows: 1. Introduction: The three-way catalytic converter is the most important external purification device installed in the vehicle's exhaust system. It converts harmful gases such as CO, HC, and NOx in vehicle exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. 2. Working Principle: When high-temperature vehicle exhaust passes through the purification device, the catalyst in the three-way catalytic converter enhances the activity of CO, HC, and NOx, promoting specific oxidation-reduction chemical reactions.
I've been driving for over 20 years and never regularly cleaned the catalytic converter, yet it works just fine. This device in the exhaust pipe helps reduce harmful emissions and is designed to be durable. As long as the engine is properly maintained and you use standard gasoline, it can generally last for years. However, if you frequently drive long distances or often get stuck in traffic, carbon buildup may occur, leading to slower acceleration, increased fuel consumption, or unusual exhaust odors. Don't waste money blindly cleaning it—just have the repair shop check the exhaust system during regular maintenance. Cleaning it improperly yourself might damage the internal structure and affect its performance. The key to prevention is using high-quality engine oil and spark plugs to reduce engine carbon deposits. Saving money is more practical.
