Civic CVCC L4-1488cc 1.5L EW1, EW3 (1985)
Two-Way Valve: Testing and Inspection
1.
Remove filler cap.
2.
Remove vapor line from fuel tank on all except 1985 Accord or from liquid/vapor separator on 1985 Accord. Connect suitable vacuum/pressure
gauge and pump to hose using T fitting if necessary.
3.
Slowly draw a vacuum while observing gauge. Vacuum should momentarily 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 momentarily stabilize at 1-2.2 inch Hg.
6.
If pressure does not stabilize within specifications, replace valve and repeat test.