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Section 08
ENGINE MANAGEMENT (4-TEC)
Subsection 03
(COMPONENT INSPECTION AND ADJUSTMENT)
SMR2003_027 _08_03A.FM
08-03-11
FUEL RAIL
Pressure at fuel rail is supplied and controlled by
the fuel pump module. Refer to FUEL PUMP for
pressure test.
Fuel Rail Replacement
Removal
Remove fuel rail cover from the engine.
Release the fuel pressure in the system using
B.U.D.S. Look in the
Activation
tab.
Insert pointed tools each side of fuel hose connec-
tor.
Disconnect wiring harness from the three fuel in-
jectors.
1. Fuel injector connectors
Disconnect fuel hose.
1. Insert pointed tools each side
Wrap a rag around the hose end to prevent rail drain-
ing.
Cut tie raps and remove the wiring harness from
the fuel rail.
Unscrew rail retaining screws.
Gently pull rail up by hand, working each side slight-
ly at a time.
Pull rail out with fuel injectors.
If necessary remove fuel injectors as described be-
low.
Installation
For installation, reverse the removal process but
pay attention to the following.
A thin film of injection oil should be applied to
O-rings of fuel injectors to ease installation in in-
take manifold.
Apply Loctite 243 on rail retaining screws then torque
to 10 N•m (89 lbf•
in
).
When installing fuel line connector to the fuel rail,
put some oil on the O-ring to ease installation.
FUEL INJECTOR
IMPORTANT:
Never mix up fuel injectors of nor-
mally-aspirated and supercharged 4-TEC engines.
Doing so will automatically lead to a misfunction of
the EMS and will cause a bad engine calibration.
Leakage Test
To perform a leakage test, the injectors and fuel
rail have to be removed from the engine. Refer to
REMOVAL in FUEL RAIL REPLACEMENT for the
procedure.
NOTE:
Do not detach injectors from the fuel rail.
Reconnect the fuel line and the wiring harness.
Place each injector in a clean bowl.
Install the safety lanyard cap on the DESS post to
activate the fuel pump.
Check for fuel leakage from the injector nozzle.
There should be less than 1 drop per minute. Per-
form the test for 2 minutes.
If not within specification, replace the fuel injector(s).
1
R1503motr163A
1
R1503motr162A
WARNING
Perform a fuel pressure test and ensure that
there is no leak. Refer to FUEL PUMP above.
Run engine and check for leaks.
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Summary of Contents for 2003 GTI LE RFI
Page 1: ...www SeaDooManuals net ...
Page 767: ...NOTE www SeaDooManuals net ...
Page 768: ...NOTE www SeaDooManuals net ...
Page 769: ...F00Z0D 2003 GTI MODEL WARNING www SeaDooManuals net ...
Page 770: ...F00Z0C 2003 GTI LE MODEL WARNING www SeaDooManuals net ...
Page 771: ...F00Z0E 2003 GTI LE RFI MODEL WARNING www SeaDooManuals net ...
Page 772: ...F00Z0J 2003 RX DI MODEL WARNING www SeaDooManuals net ...
Page 773: ...F00Z0I 2003 GTX DI MODEL WARNING www SeaDooManuals net ...
Page 774: ...F00Z0K 2003 XP DI MODEL WARNING www SeaDooManuals net ...
Page 775: ...F00Z0F 2003 GTX 4 TEC MODEL WARNING www SeaDooManuals net ...
Page 776: ...F00Z0G 2003 GTX 4 TEC MODEL WITH AUXILIARY DESS MODULE WARNING www SeaDooManuals net ...
Page 777: ...F00Z0B 2003 GTX 4 TEC AND GTX 4 TEC SUPERCHARGED MODELS WARNING www SeaDooManuals net ...
Page 779: ...www SeaDooManuals net ...