43
EFI System
66 690 14 Rev. A
KohlerEngines.com
TROUBLESHOOTING GUIDE
Engine Starts Hard or
Fails to Start When
Cold
Fuel pump not running.
Engine temp sensor faulty.
Incorrect fuel pressure.
TPS faulty.
TPS o
ff
set incorrect.
Old/stale fuel.
Low system voltage.
Speed sensor loose or faulty.
Faulty injectors.
Faulty coils.
Faulty spark plugs.
Engine Starts Hard or
Fails to Start When
Hot
Fuel pressure low.
Fuel pump not running.
Engine temp sensor faulty.
Insu
ffi
cient fuel delivery.
TPS faulty.
TPS o
ff
set incorrect.
Speed sensor loose or faulty.
Faulty injectors.
Faulty spark plugs.
Engine Misses,
Hesitates, or Stalls
Under Load
Fuel injector(s), fuel
fi
lter, fuel line, or fuel pick-up dirty/restricted.
Dirty air cleaner.
Insu
ffi
cient fuel pressure or fuel delivery.
Vacuum (intake air) leak.
Improper governor setting, adjustment or operation.
Speed sensor malfunction.
TPS faulty TPS Initialization Procedure incorrect.
Bad coil(s), spark plug(s), or wires.
Low Power
Faulty/malfunctioning ignition system.
Dirty air
fi
lter.
Insu
ffi
cient fuel delivery.
Improper governor adjustment.
Plugged/restricted exhaust.
One injector not working.
Basic engine problem exists.
TPS faulty.
Throttle plates in throttle body/intake manifold not fully opening to WOT.
Содержание Aegis ELH775
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