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International Automotive Technicians Network
Re: Air injection
Posted to Emissions Forum on 3/31/2025

"AIR" was introduced in about 1966. Catalytic convertors were introduced in about 1975.

AIR provides needed oxygen to oxidize unburned hydrocarbons in the exhaust system. t can be injected in the exhaust port to influence combustion at the exhaust port, or d... Login to read more.