Sea-doo GTX Limited iS 255 2009, Shop Manual

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Section 04 FUEL SYSTEM
Subsection 02 (ELECTRONIC FUEL INJECTION (EFI))
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1. New locking ties
Fuel Rail Hose Connection
1. Apply engine oil on O-rings of fitting.
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1. Apply oil on O-rings
2. Connect fuel hose to fuel rail.
IMPORTANT: Push fuel hose fitting on fuel rail un-
til you hear a "click". Try pulling fuel hose to ensure
fitting is properly locked.
Pressurize the fuel system. Refer to
FUEL SYS-
TEM PRESSURIZATION
in
FUEL TANK AND FUEL
PUMP
subsection.
WARNING
Failure to pressurize the fuel system may re-
sult in severe injury or a life threatening situ-
ation should a leak occur.
3. Reinstall all remaining removed parts.
FUEL INJECTOR
Fuel Injector Operation Test with
B.U.D.S. (Dynamic)
1. Connect B.U.D.S. Refer to COMMUNICATION
TOOLS AND B.U.D.S. SOFTWARE.
2. Start engine.
3. Using the B.U.D.S. software, shut down each
engine cylinder, one at a time.
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MONITORING AND ECM TABS
1. Click on the desired cylinder number
If the engine RPM drops when clicking on a cylin-
der, the injector and the ignition of this cylinder are
working.
If the engine RPM does not drop when clicking
on a cylinder, this cylinder is not working properly.
Check the following:
– Fuel injector operation. Refer to
FUEL INJEC-
TOR OPERATION TEST
.
– Spark plug and ignition coil. Refer to
IGNITION
SYSTEM
.
– Engine condition.
Fuel Injector Operation Test with
B.U.D.S. (Static)
NOTICE
After fuel injector activation us-
ing B.U.D.S., always crank engine in drowned
mode to ventilate engine to prevent a potential
backfire due to fuel accumulation in engine.
Connect B.U.D.S. Refer to
COMMUNICATION
TOOLS AND B.U.D.S. SOFTWARE.
Install D.E.S.S. key on its post.
Briefly press the START button to wake up the
ECM. Do not start engine.
Energize the desired fuel injector in B.U.D.S.
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