Will the malfunction indicator light up if the catalytic converter is stolen?

1 Answers
LeLilah
07/29/25 9:17pm
The loss of a catalytic converter can cause the malfunction indicator light to illuminate. Here is an introduction to the catalytic converter: 1. Working principle: The catalytic converter, installed in the automobile exhaust system as the most important external purification device, converts harmful gases such as CO, HC, and NOx emitted from vehicle exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. When high-temperature vehicle exhaust passes through the purification device, the purifying agent in the catalytic converter enhances the activity of CO, HC, and NOx, promoting their oxidation-reduction chemical reactions. CO oxidizes into colorless, non-toxic carbon dioxide gas at high temperatures; HC compounds oxidize into water (H2O) and carbon dioxide; and NOx is reduced into nitrogen and oxygen. These three harmful gases are transformed into harmless gases, thereby purifying the vehicle exhaust. 2. Composition: The exterior is made of double-layer stainless steel plates formed into a cylindrical shape. Insulating material—asbestos fiber felt—is placed between the double-layer thin plates. Inside, a purifying agent is installed between mesh partitions. The purifying agent consists of a carrier and a catalyst.
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