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Air injection systems (Qpnfb)

Definition
Systems that inject air into the exhaust ports of the engine for combustion of unburned hydrocarbons in the exhaust gases, thus producing cleaner exhaust emissions. (Source: www.cdnauto.org/glossary/a.asp)
Broader Term
Fuel injection (Qpnf)
Related Terms (Hierarchical)
Electronic fuel injection (Qpnfe)