MX-5 Miata L4-1597cc 1.6L DOHC (1992)
2.
Verify that no air can pass through the solenoid valve.
Fig. 118 Solenoid Valve Test
3.
Disconnect the solenoid valve connector and connect 12V and a ground to the terminals of the solenoid valve.
4.
Verify that air can pass through the solenoid valve.
5.
If not as specified, replace the solenoid valve.
Fig. 152 Two-Way Valve
TWO-WAY CHECK VALVE
1.
Remove the check valve.
2.
Check the operation of the valve with a vacuum pump.
3.
Apply approximately 37 mmHg (1.46 in.Hg) of vacuum at port "A" verify that air flows through the valve.
4.
Apply approximately 44 mmHg (1.73 in.Hg) of vacuum at port "A" verify that air flows through the valve.
5.
Replace the valve if not to specification.
