In case of removing the high pressure fuel
pump, high pressure fuel pipe, delivery pipe, and injector, there
may be injury caused by leakage of the high pressure fuel. So don’t
do any repair work right after engine stops.
|
1. |
Turn the ignition switch OFF and disconnect
the battery negative (-) cable. |
2. |
Release the residual pressure in fuel line
(Refer to “Release Residual Pressure in Fuel Line” in this
group).
When removing the fuel pump relay, a
Diagnostic Trouble Code (DTC) may occur.
Delete the code with the GDS after
completion of “Release Residual Pressure in Fuel Line”
work. | |
3. |
Remove the air cleaner and the air intake
hose (Refer to “Intake And Exhaust System” in EM
group). |
4. |
Disconnect the fuel pressure regulator valve
connector (A). |
5. |
Disconnect the fuel feed tube
quick-connector (B).

|
6. |
Remove the high pressure fuel
pipe.
(1) |
Remove the installation nut (A) from
the high pressure fuel pump with the special service tool [SST
No.: 09314-3Q100 or 09314-27130]

|
(2) |
Remove the installation nut (B) from
the delivery pipe with the special service tool [SST No.:
09314-3Q100 or 09314-27130]

|
(3) |
Disconnect the engine coolant
temperature sensor connector. |
(4) |
Remove the function block (C), and
then remove the high pressure fuel pipe.

| |
7. |
Remove the installation bolts (D), and then
remove the high pressure fuel pump from the cylinder head
assembly.
Unscrew in turn the two bolts in small
step (0.5 turns). In case of fully unscrewing one of the two
bolts with the other bolt installed, the housing surface of
the cylinder head may be broken because of tension of the pump
spring. |

|
•
|
Be sure to check the low pressure fuel
hose quick-connector (A) is completely connected to the high
pressure fuel pump until a confirmation 'click' sound is
heard. |
•
|
Be sure to re-check the low pressure
fuel hose is completely connected to the high pressure fuel
pump by pulling it after
connecting. |
•
|
Be sure to install the high pressure
fuel pipe (B) with the specified torques.
|
•
|
Because fuel leak may cause fire,
securely Inspect leakage of all fuel line connection parts at
engine start
condition. | |

•
|
Before installing the high pressure
fuel pump, position the roller tappet in the lowest position
by rotating the crankshaft. Otherwise the installation bolts
may be broken because of tension of the pump
spring. | |
•
|
Be careful to be free from foreign
materials when
assembling. | |
•
|
Do not reuse the used
bolt. | |
•
|
Do not reuse the used high pressure
fuel
pipe. | |
•
|
When tightening the installation bolts
of the high pressure fuel pump, tighten in turn the bolts in
small step (0.5 turns) after tightening them with hand-screwed
torque. | |
•
|
Install the component with the
specified torques. |
•
|
First hand-tighten the fasteners fully
until they are not fastened any more in orderto have them
inserted in place and then completely tighten to the specified
torque using a torque wrench.
If not tightening the bolts or nuts in
a straight line with the mating bolt holes or fittings, it may
cause a fuelleak due to broken
threads. | |
•
|
Note that internal damage may occur
when the component is dropped. In this case, use it after
inspecting. | |
•
|
Apply engine oil to the O-ring (A) of
the high pressure fuel pump, the roller tappet (B), and the
protrusion (C). Also apply engine oil to the groove on the
location where the protrusion (C) is installed.
| |

1. |
Installation is reverse of
removal.
Use the special service tool [SST No.:
09314-3Q100 or 09314-27130] to install the high pressure fuel
pipe. |

High
pressure fuel pump installation bolt:
12.8 ~ 14.7 N.m (1.3 ~ 1.5 kgf.m, 9.4
~ 10.9 lb-ft)
High
pressure fuel pipe installation nut:
26.5 ~ 32.4 N.m (2.7 ~ 3.3 kgf.m, 19.5
~ 23.9 lb-ft)
High
pressure fuel pipe function block installation
bolt: 9.8 ~ 11.8 N.m (1.0 ~ 1.2
kgf.m, 7.2 ~ 8.7 lb-ft)
| | |