Subaru XT 1988 Service Manual page 139

EMISSION CONTROL SYSTEM AND VACUUM FITTING
2-1
1 Valve "8"
2 Valve "A"
3 Case
4 Spring
5 Retainer
Fig. 14
\ Marked letters "To engine"
...
To canister
@
To fuel tank
~~~
..
PURGE LINE AND CANISTER
A3·192
11 Disconnect the vacuum hose. Orally blow air through the
hose to ensure that air does not leak.
21 Disconnect the purge hose. Orally blow air through the
Usually (when the current is OFF), the plunger is forced
upwards by the spring force to close the passage between @
and
®,
and to open the passage between
®
and
© .
When the current is ON in the solenoid, the plunger is
attracted downwards to open the passage between
@
and
®,
and to close the passage between
®
and
©.
®
To canister purge
control valve
L2-331
hose to ensure that air does not leak.
Fig. 15 1800 cc
3} Disconnect the evaporation hose from the fuel tank side.
Orally blow air through the hose to ensure that air flows.
Be careful not to suck on the hose as this causes fuel evapo·
rating gas to enter your mouth.
4) Check the exterior of the canister to ensure that it is not
cracked or scratched.
PURGE CONTROL SOLENOID VALVE
Check the resistance between
(+) and
(-I
terminals.
NO
Standard resistance:
32.7 - 39.9n
~
YES
Check the resistance between
(+) or (-) terminal and body.
NO
J
I
Standard resistance:
I
Replace
1
Mn
or more.
l
YES
Check the vacuum passage for
opening and closing operation
NO
while applying electric current
on both (+) and (-) terminals.
j
YES
I
Normal
I
11
©
f - - - - i
- - - +
-EE£+-- - - - - +-~-+ ~
To canister purge
control valve
Fig. 16 2700 cc
~I-=========r---J...,
To intake manifold
L2-1263