Air Injection Reactor System: Description
The Air Injection Reactor (A.I.R.) system is used on all carbureted engines. This system is designed to reduce hydrocarbons (HC) and carbon monoxide (CO) emissions.
This is accomplished by injecting air into either the exhaust port of the cylinder head, exhaust manifold or catalytic converter. The A.I.R. system operates at all times and will by-pass air only for a short period of time during deceleration and at high speeds.
The air management valve performs the by-pass and diverter function. The check valve protects the air pump from damage by preventing a backflow of exhaust gases.