Can the Catalytic Converter Be Replaced with a New Core?
2 Answers
The catalytic converter cannot be replaced with a new core because the assembly cannot be separated. Below are specific details about the catalytic converter: 1. Application: The catalytic converter transforms harmful gases such as CO, HC, and NOx emitted from vehicle exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction. It features stable performance, reliable quality, and long service life, making it widely suitable for models from Toyota, Honda, Buick, Audi, Volkswagen, Hyundai, Suzuki, and Changhe. 2. Principle: When high-temperature vehicle exhaust passes through the purification device, the catalyst in the catalytic converter enhances the activity of CO, HC, and NOx gases, promoting certain oxidation and reduction chemical reactions, where CO oxidizes at high temperatures into colorless, non-toxic carbon dioxide gas.
Theoretically, the catalytic converter core can be replaced, but it's highly discouraged in practice. Having repaired countless vehicles, I can confirm that catalytic converters feature a fully sealed, welded ceramic core structure. Forcibly removing the core often damages the housing or catalyst coating, leading to exhaust leaks or frequent fault codes. Many car owners think they're saving money, only to end up with worse performance and persistent check engine lights after core replacement. My recommendation is to replace the entire catalytic converter unit directly—it's time-saving and reliable. Though more expensive upfront, it's a one-time investment that saves repair costs long-term. Don't fall for cheap online solutions; most are ineffective and high-risk.
