Evinrude E-tec 75 HP, Руководство по обслуживанию

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109
SYSTEM ANALYSIS
DIAGNOSTIC PROCEDURES
5
Symptoms
Outboard will not crank, starter does not
operate (electric start models):
•
Check condition of battery and cables (main
battery switch and cables). Make sure battery
cables are not reversed.
•
Confirm that B+ is present at “A” terminal (yel-
low/red wire) of starter solenoid with key switch
in the START position.
•
Proceed to START CIRCUIT on p. 112. Repair
starter or start circuit as needed.
Outboard cranks, will not start:
•
Use LED indicators of
EMM
for initial diagnostic
information.
•
Perform the
Static Spark Test
using the
Evinrude
Diagnostics Software program. Refer
to IGNITION OUTPUT on p. 115.
Results:
Steady spark on all cylinders and proper output
voltage on all ignition primary circuits:
•
Check operation of all fuel injectors. Refer to
FUEL COMPONENT TESTS on p. 164.
•
Check fuel quality and that fuel is present at
injectors.
•
Refer to FUEL COMPONENT TESTS on p. 164
for fuel system pressure tests.
No spark on one or more cylinders:
•
Note cylinder with no ignition output. Refer to
IGNITION OUTPUT on p. 115.
•
Monitor cranking RPM using the diagnostic pro-
gram (300 RPM minimum).
•
Check CPS operation (verify RPM reading.)
•
Perform ignition coil resistance test(s). Refer to
Ignition Coil Tests on p. 128.
•
Use the
Evinrude
Diagnostics Software pro-
gram to check ignition voltage and 55 V alterna-
tor/injector voltage.
Outboard runs:
•
Use
Evinrude
Diagnostics Software program to
perform
Dynamic Tests
. See Dynamic Tests
on p. 121.
•
Use the engine
Monitor
screen of the
Evinrude
Diagnostics Software program to observe circuit
voltages. Refer to
Engine Monitoring Informa-
tion on p. 111.
•
Use the diagnostic software
Logging
function to
record engine data as a runability problem is
occurring.
•
Use an inductive timing light to monitor the
injector circuits and ignition primary circuits.
Refer to
Testing with Timing Light on p. 110.
•
Use an inductive amp meter to monitor injector
circuit current. Compare readings of all circuits
to identify possible failure.
Logging Screen 005172