Fuel Delivery Tests; Fuel Pump Static Test; Fuel Injector Static Test - Evinrude E-Tec 40 HP Service Manual

SYSTEM ANALYSIS

FUEL DELIVERY TESTS

FUEL DELIVERY TESTS
A
WARNING
Protect against hazardous fuel spray.
Before starting any fuel system service,
carefully relieve fuel system pressure.
Refer to Relieving Fuel System Pressure on
p. 142.
Check the
Evinrude
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.
Do NOT perform static tests using
IMPORTANT:
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.
Static Tests Screen
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
84
Diagnostics sof tware
008569A
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
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.
Do NOT perform static tests using
IMPORTANT:
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.
Static Tests Screen
This test is operating the injectors
IMPORTANT:
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.
EMM. Resi stance
008569A