Civic CVCC L4-1335cc 1300 EJ1 (1983)
Two-Way Valve: Testing and Inspection
1.
Remove filler cap.
2.
Remove vapor line from fuel tank on 1983-86 Prelude and 1984-86 Civic, or from liquid/vapor separator on other vehicles. Connect to T-fitting
from suitable vacuum gauge and vacuum pump.
3.
Slowly draw a vacuum while observing gauge. Vacuum should stabilize at .2-.6 inch Hg.
4.
If vacuum does not stabilize within specifications, replace valve and repeat test.
5.
Slowly pressurize vapor line while observing gauge. Pressure should stabilize at 1-2.2 inch Hg.
6.
If pressure does not stabilize within specifications, replace valve and repeat test.