Air Supply Control Valves

Fig. 60 Air control & shut off valve with orifice:

Air control & shut off valve. 1982:

Standard air control valve.:

Air control/shut off valve.:

These valves are used to direct air pump output to the exhaust manifold or downstream to the catalyst system depending on the engine control modes.
Three types of valves are used on 1983 vehicles, the standard air control valve, Fig. 70, the air control/shut off valve, Fig. 71, and the air control/shut off valve with orifice, Fig. 68. All other vehicles use the standard air control valve, Fig. 60.