Precautions; On Car Service; W Service Procedure - Subaru SVX 1992 Manual

FUEL SYSTEM [w2A0] 2-8
W SERVICE PROCEDURE
1 . Precautions
a. Before starting the job, be sure to carry out the
following.
1) Place "No fire" signs near the working area.
2) Disconnect ground cable from battery .
b. Be careful not to spill fuel on the floor.
~A: RELEASING OF FUEL PRESSURE
1) Fold down the rear seat back, and turn up the floor
mat.
2) Remove access hole lid .
3) Disconnect fuel pump connector .
Fuel pump
Connector
J
C2-025
Fig . 9
4) Start the engine, and run it until it stalls .
5) After the engine has stalled, crank it for five more
seconds.
6) Turn ignition switch "OFF".
2 . O n Car Service
A: MEASUREMENT OF FUEL PRESSURE
1) Release fuel pressure .
Refer to Section 1 . [W1A0] .
2) Connect fuel pump connector .
3) Install fuel pressure gauge .
(1) Disconnect fuel hose from fuel filter .
(2) Connect fuel pressure gauge between fuel filter
and fuel hose.
C1-052
Fig. 10
4) Start the engine .
5) Measure fuel pressure while disconnecting pressure
regulator vacuum hose from right side collector cham-
ber.
Fuel pressure:
235 - 265 kPa (2 .4 - 2.7 kg/cm', 34 - 38 psi)
,,,_,~1I1]IIlI11I 11111C1~]I~~ll~, _ _
'D -
/~ ~ ;-
/` !
Li
~' r
C2-031
Fig . 11
6) After connecting pressure regulator vacuum hose,
measure fuel pressure .
Fuel pressure :
177 - 206 kPa (1 .8 - 2.1 kg/cm', 26 - 30 psi)
a. If out of specification as measured at step 6), re-
place pressure regulator.
b. Before removing fuel pressure gauge, release fuel
pressure.
11