ENGINE
TROUBLESHOOTING/SOFTWARE
DIAGNOSTICS
Engine CRANK State Shutdowns:
"Engine
CRANK
state
is -
DC
circuit breaker on, generator start switch has been
pushed
but
engine
is
not
up to
running speed yet. This state only lasts for a
few
seconds
on
a typical engine before
the
engine starts
and
transitions
to
the
RUN state.
In
the
CRANK
state, warnings are
not
indicated on
the
LED
display, and they are
not
logged.
All
shutdowns are
logged.
Shutdown
Description
Parameters
Possible
cause
-
No
CAM
speed sensor
o cam sensor adjusted improperly
1
Cam Sensor failure
signal detected by
ECU
o loose connection
or
corroded wiring
o sensor tip contaminated with
metal
filings
Exceeds 8 second crank
o faulty battery
2
Over-Crank Timeout
duration
o loose connection
or
corroded wiring
o fuel supply insufficient
External Alarm
Open circuit
o external alarm fault (i.e. Fireboy)
3
o loose connection
or
corroded wiring
o faulty battery
Battery Voltage Low
Less than 8 volts
o faulty charging circuit
4
o blown fuse
o loose connection
or
corroded wiring
No
speed signal detected
o loose connection
or
corroded wiring
5
Speed Signal
Not
Detected
o speed conditioning module faulty
byECU
o sensor tip contaminated with metal filings
o
Out
of
fuel
or
fuel
system
not
bled
properly
MAP
reading
out
of range
o faulty
MAP
sensor
6
MAP
Sensor
Fault
o pinched or
bare
wire
in
harness
(
<10
kPa
or
>115
kPa)
o loose connection
or
corroded wiring
1----
32
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