Is it necessary to replace a faulty three-way catalytic converter?

[LeGia]

If the three-way catalytic converter is faulty or damaged, it must be replaced; however, if it is merely clogged, replacement is not necessary. Below is a detailed introduction to the three-way catalytic converter: 1. Introduction to the three-way catalytic converter: The three-way catalytic converter is part of the automotive exhaust system and serves as a purification device. It is designed to clean harmful gases from vehicle exhaust, ensuring that the emissions released into the atmosphere do not pollute the environment. 2. Function of the three-way catalytic converter: The role of the three-way catalytic converter is to transform harmful gases emitted from the vehicle into harmless gases. The primary harmful gases in vehicle exhaust include carbon monoxide (CO), nitrogen oxides (NO), and hydrocarbons (HC). The three-way catalytic process involves using specific chemicals to trigger a series of chemical reactions with these harmful gases, converting them into harmless substances. Of course, if the three-way catalytic converter fails, this conversion function will be lost.