A GM system similar to the air Injection Reaction System (AIR) except there is no air pump . Instead exhaust pressure pulses draw air into the exhaust system . Fresh air that is filtered by the air cleaner is supplied to the system on a command from the Electronic Control Module (ECM).
PULSAIR
Meaning of PULSAIR in English
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012