2WD Non-Cal Models

Fig.42 ASV ll without cutoff valve.:

Fig.46 1984 2WD Non-California models.:

Fig.46 2WD Non-California models.:

Component parts of the system are as follows:
ASV l with cutoff valve (1600 engine has one valve and 1800 engine has two valves)
ASV ll without cutoff valve
Air suction piping and hoses
Silencers
Air filter
Thermosensor
Solenoid valve l
Check valve ll
ECM

Secondary air is supplied to the exhaust ports on #1,#3 and #2,#4 cylinders for the 1800 engine and on the #2,#4 side for the 1600 engine by an ASV with cutoff valve. The ASV without cutoff valve always operates regardless of coolant temperature or ECM signal. On the other hand, ASV valves with cutoff valves are controlled by both coolant temperature and time. When the coolant temperature is below 95 deg. F, the electronic control unit signals the solenoid valve to allow manifold vacuum to open the cut-off valve(s) which is mounted within the Air Suction Valve(s)(ASV). The solenoid valve remains open for approximately 2 minutes. At the end of 2 minutes, the control unit turns off the solenoid valve and air injection is stopped.