Purge Control Valves Check; Vacuum Switch Valve Check - Mazda 626 MX-6 Workshop Manual

4A
EEC SYSTEM
4A-76
14. Disconnect the evaporation hose from the evapo­
ration pipe.
15. Connect the vacuum pump to the evaporation
pipe.
16. Operate the vacuum pump and verify that no vacu­
um is held.
17. If vacuum is held, check the evaporation pipe for
clogging.
No. 1 Purge Control Valve
1. Blow through the purge control valve from port A
and check that air does not flow.
2. Connect a vacuum pump to the purge control
valve.
3. Apply 110 mmHg (4.33 InHg) vacuum, and blow
through port A again; air should flow.
No. 2 Purge Control Valve
1. Disconnect vacuum hose B from the evaporation
pipe.
2. Blow through the hose and verify that air flows
freely.
Vacuum Switch Valve
1. Remove vacuum switch valve.
2. Connect a vacuum pump to the valve.
3. Blow through the valve from port A and verify that
air comes out of port B when vacuum is applied.
Specified vacuum:
66—106 mmHg (2.6—4.2 inHg)
86U04A-146