Pulse Air Injection Reactor: Description

The Pulse Air (PAIR) Injection system is a non-pump type air injection system which uses engine exhaust pulses to draw fresh air into the exhaust system. This helps to further oxidize HC and CO emissions. System consists of a grouping of check valves in a Pulse Air valve assembly (2 used on V6 and V8 applications) and related tubing.

The Pulse Air system is used on Chevrolet Chevette, 151" 4 cylinder engines (except Calif.), and on some V6 and V8 engines.