Canister Test; Canister - Subaru Forester Technicians Reference Booklet

2
000 Model Year Evaporative System Diagnosis
Purge
Drain
Shut off Valve
Pressure Control Valve
Fuel Tank and
Vent Control Valve

Canister

Canister Test

Canister Test Canister Test
Canister Test Canister Test
Steps 1 through 8 tests the air tightness of the canister.
Purge Hose
CPC-16
Fuel Tank
(1) Disconnect 3 hoses from canister.
Picture 125.
(2) Reinstall PT-1 to pressure tester hose.
(3) Connect adapter-1 to PT-1.
(4) Connect adapter-1 to purge hose
connection of canister. Picture 125.
Effective 09-25-03
Drain Hose
D-1
F-1
(5) Connect adapter-3 to fuel tank hose
connection of canister.
(6) Connect adapter-4 to Drain hose
connection of canister.
(7) Pressurize.
(8) After 2 minutes, does pressure hold?
YES – go to step (9).
NO – go to step (9F).
(9) Disconnect 3 adapters from canister.
(10) Connect all hoses back to canister and
secure.
125
30
STOP STOP
STOP STOP STOP