Toyota Celica 2005 Repair Manual page 1511

EC−8
Fuel Tank Cap
EVAP Line Hose
A
Air
2005 CELICA (RM1131U)
EMISSION CONTROL
HINT:
If the pressure does not decrease when the filler cap is re-
moved, then you can conclude that the hose connecting the
service port to the fuel tank is blocked, etc.
(k)
B06547
6.
(a)
(b)
(c)
(d)
(e)
If there is no abnormality, replace the fuel tank and filler pipe.
(f)
B08762
7.
EVAP Line Hose
(a)
(b)
(c)
Purge Line Hose
HINT:
B08763
In the condition that the fuel is full, as the float value of the fill
check valve is closed and has no ventilation, it is necessary to
check the fuel amount (volume).
(d)
If there is nothing stuck in them, replace the fuel cut off valve
and fill check valve.
(e)
− EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
(3) Check if the pressure decreases when the fuel tank
cap is removed while adding pressure.
Disconnect the pressure gauge from the EVAP service
port on the purge line.
CHECK AIRTIGHTNESS IN FUEL TANK AND FILLER
PIPE
Disconnect the EVAP line hose from the charcoal canis-
ter.
(1) Pinch portion A.
(2) Pull out the connector.
Pressurize and make the internal pressure in the fuel tank
2
4 kPa (41 gf/cm , 0.58 psi).
Check that the internal pressure of the fuel tank can be
held for 1 minute.
Check the connected portions of each hose and pipe.
Check the installed parts on the fuel tank.
Reconnect the EVAP line hose to the charcoal canister.
INSPECT FUEL CUTOFF VALVE AND FILL CHECK
VALVE
Disconnect the purge line hose and EVAP line hose from
the charcoal canister.
Plug the cap to the air drain hose.
Pressurize 4 kPa (41 gf/cm
and check that there is ventilation through the EVAP line
hose.
Check if there is anything stuck in the vent line hose and
EVAP line hose.
Reconnect the purge line hose and EVAP line hose to the
charcoal canister.
1510
2
, 0.58 psi) to the purge port