Car catalytic converter role and function is fundamental to modern vehicles. Whether in diesel or petrol engines, the catalytic converter reduces toxic gases and helps meet emission standards.
The Role of Catalytic Converters
Key functions include:
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Reducing pollution: converts CO into CO₂.
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Neutralizing toxins: reduces harmful NOx gases.
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Compliance: ensures vehicles meet Euro emission norms.
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Engine health: keeps exhaust flow balanced for proper engine performance.
How Catalytic Converters Work
Inside, a ceramic or metallic core is coated with platinum, rhodium, and palladium. These act as catalysts to trigger chemical reactions:
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In petrol engines: the 3-way converter transforms CO, NOx, and unburned hydrocarbons (HC).
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In diesel engines: oxidation catalysts reduce NOx and assist filters in trapping soot.
Diesel vs Petrol Differences
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Petrol engines: higher CO and HC → 3-way catalytic converters are effective.
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Diesel engines: higher NOx and particulate matter → require oxidation catalysts and DPF systems.
Why It Matters
A failing catalytic converter increases fuel consumption, raises toxic emissions, and leads to inspection failures. Replacing or maintaining it ensures safer, eco-friendly driving.
📌 Internal link: DiagnozaBAM
📖 External source: European Environment Agency – Vehicle Emissions
✍️ Author: Bejenaru Alexandru Ionut – [email protected]
✍️ Author: Bejenaru Alexandru Ionut – [email protected]
🔗 Internal link: https://diagnozabam.ro/sfaturi
