Air Injection System: Description

The air injection system adds a controlled amount of fresh air to the exhaust gases at the exhaust manifold, or downstream to the catalyst to aid in oxidation of the exhaust gases. This results in reduced levels of carbon monoxide (CO) and hydrocarbon (HC) emissions.

The 2.2L and 2.5L TBI system uses an Air Aspirator System (AAS). This system uses an aspirator valve, hoses and tubing.