84
SYSTEM ANALYSIS
FUEL DELIVERY TESTS
FUEL DELIVERY TESTS
Refer to Relieving Fuel System Pressure on
p. 142.
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, the EMM a nd fu el pump circuit are not at
fault.
IMPORTANT: Do NOT perform static tests using
Diagnostic Power Supply T ool, P/N 587005, with
internal 9 volt batt eries only . This will produce
false results. Refer to Communication on p. 63.
If the pump does not run:
• Check voltage at pin 1 of fuel pu mp connector.
Voltage sho uld be slightly less than 12 V with
KEY ON, or when fuel pump test is activated.
Voltage sho uld be 55 V when th e outbo ard is
cranking or running.
• The EMM controls the fuel pump ground (brown
wire). Use a n ohmmet er to check continuity
between pin 2 of f uel pump co nnector a nd
ground. Use the fuel pump static test to activate
the control function of the EMM. Resi stance
should drop as EMM connects the control circuit
to ground.
• Refer to Circulation Pump Resistance Test on
p. 139.
If the pump runs:
•
Refer to
Fuel System Pressure Test
on p. 137.
•
Refer to
Running Fuel System Tests
on p. 85.
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: Do NOT perform static tests using
Diagnostic Power Supply T ool, P/N 587005, with
internal 9 volt batteries only . This will p roduce
false results. Refer to Communication on p. 63.
IMPORTANT: This test is operating the injectors
with 12 V ba ttery power on the system voltage
(55 V) circuit. Bat tery must be f ully charge d a nd
connections must be clean and tight. Injector acti-
vation should be carefully confirmed.
A WARNING
Protect against hazardous fuel spray.
Before starting any fuel system service,
carefully relieve fuel system pressure.
Static Tests Screen 008569A
Static Tests Screen 008569A
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