Section 06
ENGINE MANAGEMENT (DI)
Subsection 03
(COMPONENT INSPECTION AND ADJUSTMENT)
06-03-14
SMR2002-030 _06_03A.FM
1. Retaining plate
2. Screws
3. Fuel injector
4. Fuel pressure regulator and cover
5. Air pressure regulator
NOTE:
If needed, use a small screwdriver to lift
the fuel pressure regulator.
To remove fuel pressure regulator, pull the fuel
regulator and the cover out of rail.
Installation
For the installation, reverse the removal procedure
but pay attention to the following.
If the same regulator is reinstalled, it is recommend-
ed to change the O-rings.
Insert the fuel pressure regulator into the cover
then install both regulators together in place with
your hand. Do not use any tool.
NOTE:
A thin film of injection oil may be applied
to O-ring to ease insertion in rail.
Apply Loctite 243 on rail retaining screws then
torque to 25 N•m (18 lbf•ft).
FUEL INJECTOR
Leakage Test
Testing the fuel injector operation can be per-
formed with the air/fuel rail installed.
The leakage test is validated when performing the
FUEL DELIVERY SYSTEM DIAGNOSTIC FLOW
CHART elsewhere in this section.
Electrical Test
Safety lanyard must be on DESS post.
Using the vehicle communication kit (VCK) with
the B.U.D.S. software, energize the fuel injector
from the
Activation
section.
If the injector does not work, disconnect the plug
connector from the injector.
Install a temporary connector to the injector with
wires long enough to make the connection out-
side the bilge and apply voltage (12 V) to this test
harness.
This will validate the injector mechanical and elec-
trical operation.
If it does not work, replace it.
Otherwise, check the resistance of the fuel injec-
tor circuit.
Reconnect
the injector and disconnect the AMP
plug connector number 4 on the MPEM.
Using a multimeter, check resistance value be-
tween terminals as follows.
The resistance should be between 1.7 and 1.9
Ω
.
If resistance value is correct, try a new MPEM.
Refer to MPEM REPLACEMENT procedures else-
where in this section.
If resistance value is incorrect, repair the wiring
harness/connectors between AMP plug connec-
tor and fuel injector.
Fuel Injector Replacement
When one fuel injector is defective, both have to
be replaced at the same time. Be sure to check
the other one. Also replace direct injectors.
Removal
See FUEL PRESSURE REGULATOR REPLACE-
MENT
above for procedure. However, do not re-
move any regulator.
To remove fuel injector, pull it out of rail.
4
2
F12R1AA
3
1
3
2
2
5
COMPONENT
CONTACT LOCATION
Fuel injector MAG
7 and 13
Fuel injector PTO
8 and 14
www.SeaDooManuals.net
Содержание GTI 5558
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