Daihatsu F300 Service Manual page 1357

EMISSION CONTROL SYSTEM
Coolant temp.
BVSV
Throttle valve
*Check valve
Fuel filler cap
Evaporated fuel (HC)
or tank pressure opening position
(1)
(2) (3)
check valve
Below 45°G
CLOSED
- - -
-
-
HC from fuel tank is
Positioned
CLOSED
-
absorbed by canister
below purge port
- -
Above 66°C
OPEN
Positioned
OPEN
HC from canister is
above purge port
-
-
-
sucked into engine
High pressure
OPEN CLOSED
CLOSED
HC from fuel tank is
in fuel tank
-
- -
absorbed by canister
High vacuum
CLOSED
-
- -
CLOSED
OPEN {OPEN when exces- (PJr is led into fuel tank)
in fuel tank
sive high vacuum)
*:
(1) ... Charcoal canister, (2) ... Safety valve positive side, (3) .. Safety valve negative side
"""""""'
INSPECTION OF FUEL VAPOR LINES, FUEL
TANK, FILLER CAP & SAFETY VALVE
1. Visual inspection of fuel vapor lines and connections
Check the lines and connections for loose connections,
kinks or damage.
2. Visual inspection of fuel tank
Check the fuel tank for deformation, cracks or fuel leakage.
3. Visual inspection of fuel filler cap
Check the cap and gasket for damage or deformation.
Repair or replace the gasket and/or cap, if necessary.
4. Inspection of safety valve
(1) Remove the quarter trim RH by detaching the eleven
clips.
(2) Detach the safety valve together with fuel separator.
(3) Disconnect the hoses from the safety valve.
EC-18
~CC49
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