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2. Catalytic converter - Wikipedia

   en.wikipedia.org/wiki/Catalytic_converter

   A three-way catalytic converter on a gasoline-powered 1996 Dodge Ram Simulation of flow inside a catalytic converter. A catalytic converter is an exhaust emission control device which converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction.

3. Catalyst poisoning - Wikipedia

   en.wikipedia.org/wiki/Catalyst_poisoning

   In catalytic converters used on automobiles, the combustion of leaded gasoline produces elemental lead, lead(II) oxide, lead(II) chloride, and lead(II) bromide. Lead alloys with the metals present in the catalyst, while lead oxides and halides coat the catalyst's surfaces, reducing the converter's ability to reduce NOx emissions.

4. Secondary air injection - Wikipedia

   en.wikipedia.org/wiki/Secondary_air_injection

   When the catalytic converter is cold, air injected at the upstream point burns with the deliberately rich exhaust so as to bring the catalyst up to operating temperature quickly. Once the catalyst is warm, air is injected to the downstream location — the catalytic converter itself — to assist with catalysis of unburned hydrocarbons.

5. LA retiree gets shocking surprise 3 years after car’s ... - AOL

   www.aol.com/finance/la-retiree-gets-shocking...

   Claudette Hill was one of many L.A. car owners who had their catalytic converters stolen during a rash of thefts in 2020. Right away, the retired seamstress got the auto part replaced.

6. Exhaust gas temperature gauge - Wikipedia

   en.wikipedia.org/wiki/Exhaust_gas_temperature_gauge

   An exhaust gas temperature gauge (EGT gauge or EGT sensor) is a meter used to monitor the exhaust gas temperature of an internal combustion engine in conjunction with a thermocouple-type pyrometer.

7. Exhaust system - Wikipedia

   en.wikipedia.org/wiki/Exhaust_system

   It is a U.S. legal requirement to have a catalytic converter. [3] [4] Converters may not be removed from a vehicle that is used only for "off-road" driving in the United States. [5] The main purpose of a catalytic converter on an automobile is to reduce harmful emissions of hydrocarbons, carbon monoxide, and nitrogen oxides into the atmosphere.