85
SYSTEM ANALYSIS
FUEL DELIVERY TESTS
5
FUEL DELIVERY TESTS
Refer to Relieving Fuel Sy stem Pre ssure on
p. 143.
Check the Evinrude Diagnostics sof tware
Occurred Faults screen for curren t service codes
before troubleshooting. Correct any problems and
clear the codes FIRST.
Inspect all fuel hoses, filte rs, and co nnections.
Check quality of fuel supply.
Fuel Pump Static Test
Use the Evinrude Diagnostics software Fuel Pump
test to activate the electric fuel pump. If the pump
runs, t he EMM a nd fu el pump circuit are not at
fault.
If the pump does not run:
• The EMM controls power to the fuel pump (pur-
ple/black wire). Check voltage at p in 1 of fue l
pump connector. Voltage should be 12 V when
KEY is first ON, when fuel pump test activated,
or when outboard is cranking or running.
• Use an ohmmete r to che ck continuity bet ween
pin 2 of fuel pump connector and ground.
• Refer to Circulation Pump Resistance Test on
p. 141.
If the pump runs:
• Refer to Fuel System Pressure Test on p. 139.
• Refer to Running Fuel System Tests on p. 86.
Fuel Injector Static Test
Use the Evinrude Diagnostics software Fuel Injec-
tor Static Test to activate each fuel injector. Listen
for an a udible click from each injector when it is
actuated. If the injector activates, the EMM an d
injector circuits are not at fault.
IMPORTANT: This test is operating the injectors
with 30 V on the system voltage (55 V) circuit. The
start assist circuit (SAC) of the EMM converts bat-
tery voltage (12 V) to 30 V of system voltage. Bat-
tery must be fully charged and co nnections must
be clean and tigh t. Injector act ivation should be
carefully confirmed.
A WARNING
Protect ag ainst hazardous fue l spray.
Before st arting any fuel syst em service,
carefully relieve fuel system pressure.
Static Tests Screen 008569
Static Tests Screen 008569
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