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. A single pulse air valve with 4 check valves (one for each exhaust port) is used.

The Pulse Air system is used on 1.6 Liter (98") 4-cylinder engines in both Chevette and Pontiac T1000 models.