BRP E200DHLSEB, Руководство по обслуживанию

Страница: 126 / 412

124
SYSTEM ANALYSIS
FUEL DELIVERY TESTS
Results:
No injectors actuate:
•
Use the
Monitor
screen of the diagnostics soft-
ware to make sure voltage is present on the
system voltage circuit.
•
Refer to
Running Fuel System Tests
on
p. 124.
Some injectors actuate; some do not:
•
Test the resistance of individual injector circuits
between the injector connector and injector con-
trol wire at the
EMM
.
•
See
Fuel Injector Resistance Test
on p. 176.
All injectors actuate:
•
Refer to
Running Fuel System Tests
on
p. 124.
Running Fuel System Tests
Run or crank the outboard.
Use the
Evinrude Diagnostics
software
Monitor
screen to check system voltage. If voltage is low,
or drops as RPM increases, refer to
Stator Volt-
age Output Test
on p. 135.
Use an inductive timing light to monitor the injec-
tor control wire (connector pin 2) for each injector.
Make sure the pickup is attached to only one wire.
Flashes on the timing light indicate current in the
circuit is being switched by the
EMM
. The
Dynamic Tests
screen allows the control signal to
be turned off to a particular injector.
IMPORTANT:
Some timing lights may not flash
consistently at cranking speeds. Always check the
orientation of the timing light pickup and the oper-
ation of the timing light.
Results:
No light activation on any injector wires (outboard
cranks and starter turns flywheel):
•
Check stator input to
EMM
, CPS operation, and
all grounds and wiring connections.
•
Eliminate all other possibilities to isolate a faulty
EMM
.
Irregular or no light activation on some injector
wires:
•
Test the resistance of individual injector circuits
between the injector connector and injector con-
trol wire at the
EMM
.
•
Check battery cable connections.
•
Make sure all grounds are clean and tight.
•
See
Fuel Injector Resistance Test
on p. 176.
Steady light activation on all injector wires and
consistent voltage readings,
EMM
injector control
function is good:
•
Use the diagnostics software
Dynamic Fuel
Test
to isolate a faulty cylinder. See
DYNAMIC
TESTS
on p. 115.
•
Refer to
Fuel Injector Pressure Test
on p. 175.
•
Refer to
Fuel System Pressure Test
on p. 174.
Dynamic Tests Screen
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