What are the symptoms of a car without a catalytic converter?

1 Answers
VonAxel
07/29/25 9:59pm
A car without a catalytic converter has no impact on the vehicle itself but significantly affects the environment. Here are the relevant details: 1. Damaged catalytic converter: A damaged catalytic converter will cause the car to emit large amounts of harmful gases, which may even enter the cabin, affecting the health of passengers. If the catalytic converter is not repaired promptly, the vehicle may fail annual inspections, leading to fines or impoundment. 2. Function: The catalytic converter is the most important external purification device installed in a car's exhaust system. It converts harmful gases such as CO, HC, and NOx from vehicle emissions into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions.
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