What Causes the Engine Malfunction Light to Illuminate Due to Low Catalytic Converter Efficiency?
1 Answers
Introduction to the causes of the engine malfunction light illuminating due to low catalytic converter efficiency: Poor-quality gasoline: The vehicle was filled with low-quality gasoline. Sensors: Issues with the oxygen sensor, air flow sensor, or other sensors may lead to incomplete combustion of the fuel mixture, resulting in substandard exhaust emissions. Catalytic converter blockage: A blocked catalytic converter loses its ability to convert exhaust gases. Additional information: The catalytic converter is installed in the vehicle's exhaust system as the most important external purification device. It converts harmful gases such as CO, HC, and NOx emitted from the vehicle's exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. When high-temperature exhaust gases pass through the purification device, the purifying agents in the catalytic converter enhance the activity of CO, HC, and NOx, promoting specific oxidation-reduction chemical reactions. CO is oxidized at high temperatures into colorless, non-toxic carbon dioxide gas; HC compounds are oxidized 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's exhaust emissions.
