Can the Three-Way Catalytic Converter Be Repaired?

[DiMaggie]

The three-way catalytic converter can be repaired, but the key consideration is whether it is worth repairing. Generally, when a vehicle's catalytic converter is damaged, both dealership service centers and independent repair shops will recommend replacement. This is because repairing catalytic converters has become increasingly rare, and most service centers or repair shops lack the necessary materials for such repairs. The catalytic converter is a critical component for exhaust gas purification in gasoline vehicles. Its core consists of a porous ceramic substrate housed in a specially designed exhaust pipe. The surface of this porous ceramic is coated with precious metals like platinum, rhodium, palladium, and rare earth materials, which facilitate the oxidation-reduction reactions that convert harmful gases such as carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) into less harmful substances (the substrate itself does not participate in the reaction).