Air Injection System: Description

There are 2 air injection systems used on AMC vehicles. A single air injection system is used with all Federal Spirit and Concord models equipped with 4-cylinder engines and manual transmissions. The dual air injection system is used on all models equipped with a 6-cylinder engine.

The systems add a controlled amount of air to exhaust gases in the exhaust ports. This causes oxidation of gases and reduction of carbon monoxide and hydrocarbon emissions. In addition to this, the dual systems adds air at the dual-bed catalytic converter.

The single stage system consists of a belt driven air pump, diverter (by-pass) valve, air injection manifold, check valve and connecting hoses.

In addition to these components the dual system contains an air switch valve, "downstream" air injection tube, and in conjunction with the CEC (Computerized Emission Control), a reverse delay valve, coolant temperature override valve, 2-way delay valve, diverter solenoid and upstream solenoid.