FUEL PRESSURE INCREASING
1. Connect the fuel pump 2P (Black) connector [1].
2. Connect the battery negative
H cable (page 21-8).
3. Tu
rn
the ignition swit
ch
ON and engine stop switch
"0 ".
NOTE
~
Do not start the engine.
4. The fuel
pump will run for about 2 seconds, and fuel
pressure
will rise.
Turn the ignition
sw
itch OFF .
Repeat this procedure 2
or
3 times, and
check.
thai
there is no leakage in the fuel supply system.
S
Install the rubber boot
(2]
on the sub-fuel tank/fuel
pump assembly properly.
6.
Install the right side cover (page 2-4).
FUEL PRESSURE INSPECTION
FUEL SYSTEM
Relieve the fuel pressure and disconnect the quick
,-------
---
-
----
connect fitting from the fuel injector (page 7-7
).
(1)
Attach the special tools between the fuel injector and
fuel feed hose.
Except
U.S.A. TOOLS:
[1] Fuel pressure gauge 07406-0040004
(2)
Pressure gauge
manifold
07ZAJ·S5A0111
(3]
Hose
attachmen
t, 9
mm
/9
mm
07ZAJ-S5A0120
[4]
Hose
attachme
nt
, 6
mm
/9
mm
01ZAJ-5SA0130
(5J
Attachment
JOin
t, 6
mm
l9 mm 07ZAJ ·S5A0150
U.S.A. TOOLS:
Fuel
pressure
gauge, 100
psi
01406-0040008
Pressure
manifold
hose 01AMJ-HW3A100
Adapter
, female 07AAJ-SSMA400
Adapter
, male 07AAJ-S6MA200 I
Connect the fuel pump 2P (Black) connector.
Temporarily connect the battery negative
(-
) cable
(page
21-8).
Start the engine and let it idle. L
_________________
~
Read the fuel pressure.
Standard
:
316 - 387 kPa (3.2
- 3.9
kg
fl
cm
l, 46 - 56
psi)
If the fuel pressure is higher than specified pressure ,
replace the fuel pump unit (faulty fuel pump or fuel
pressure regUlator
).
If the fuel pressure is lower than specified, inspect
th
e
following:
- pinched or clogged fuel feed hose, fuel hose
or
fuel
tank breat
her
hose
- fuel flow (page 7-12)
- clogged fuel tank st
ra
iner screen (page 7-21 )
- clogged fuel pump
filter (page 7-14)
- fuel pump (page 7- 13)
After
In
spection, relieve the fuel pressure (page 7-6).
Wrap
iI
shop towel Remove the special tools from the fuel injector and fuel
around the feed hose .
aflachment to soak
up
any
spilled fuel.
Connect the quick connect fitting to the fuel injector
(page
7- 10).
7-11