What does AIR stand for?

Secondary Air Injection (automotive)

This definition appears very rarely and is found in the following Acronym Finder categories:

Science, medicine, engineering, etc.

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Samples in periodicals archive:

Topics include transient engine startup and shutdown, mixture formation, cold-start hydrocarbon emissions mechanisms, characterization of cold engine processes, spark retardation and secondary air injection for improving catalyst light-off performance, the effects of fuel properties and fuel reforming on cold-start hydrocarbon emissions and catalyst light-off, advanced catalyst design, the hydrocarbon trap, three-way catalytic converter system monitoring, evaporative emissions reduction, onboard diagnostics, emissions measurements and near-zero emission gasoline powered vehicle systems from BMW, Ford, Honda, Nissan, and Toyota.

Technologies for near-zero-emission gasoline-powered vehicles

Starting in 2006, manufacturers will be required to reduce emissions of smog-causing hydrocarbons and nitrogen oxides by 60 percent by using improved technologies such as secondary air injection, electronic-fuel-injection systems and catalytic converters.

Logging to expand in Alaska's Tongass

The engine meets EU4 emission requirements without secondary air injection or exhaust gas recirculation, thanks to its base design and engine computer.

Mini Cooper: package delivery. (On Cars)