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 aid in complete oxidation of the exhaust gases. This results in reduced levels of carbon monoxide (CO) and hydrocarbon (HC) emissions.

Air pump air injection systems consist of a belt driven air pump, a switching/relief valve, hoses, and check valves to protect the hoses and other components from hot gases in the injection tubes.