Section 04 FUEL SYSTEM
Subsection 03 (FUEL TANK AND FUEL PUMP)
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1. Connect to fuel pump
2. Connect to outlet hose
Test when Engine Is Stopped
Remove D.E.S.S. key from its post to prevent en-
gine starting.
Press the START button and observe fuel pres-
sure. Repeat twice. Release pressure in system
using the valve on the pressure gauge between
each test so that the reading returns to zero (0).
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FUEL PUMP PRESSURE TEST
1. Valve on gauge
MODELS
FUEL PRESSURE (when
pressing the START
button)
1503 4-TEC
supercharged
intercooled
386 - 414 kPa (56 - 60 PSI)
Test when Cranking or Starting Engine
Crank or start engine
and observe fuel pressure.
The fuel pressure should be the same as above.
If pressure is good, fuel pump and pressure regu-
lator are functioning correctly.
A rapid pressure drop indicates leakage either
from the fuel rail or from the fuel pump check
valve. Check fuel rail for leaks.
If leak occurs while pressing the START button
and fuel rail is not leaking, then replace fuel pump
module.
A slow pressure drop indicates leakage either
from a fuel injector or from the fuel pressure
regulator in the fuel pump module. To check
fuel injectors for leaks, refer to the
ELECTRONIC
FUEL INJECTION (EFI)
subsection. If injectors
are not leaking, then replace fuel pump.
Release fuel pressure in system using the valve
on the pressure gauge.
Remove pressure gauge and reinstall fuel hose on
fuel pump module.
WARNING
Wipe off any fuel spillage in the bilge. Fuel
is flammable and explosive under certain
conditions. Always work in a well ventilated
area.
Reinstall all removed parts.
PROCEDURES
FUEL HOSES AND OETIKER
CLAMPS
Fuel Hose Inspection
Inspect all fuel hoses for wear, kinks, cracks or any
other types of damages.
Inspect all clamps for tightness.
Fuel Hose Replacement
When replacing fuel lines on all SEA-DOO wa-
tercraft models, be sure to use “A1” type hose
approved by BRP for pressurized hoses, and
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Summary of Contents for GTX Limited iS 255 2009
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