3724 690 32 Rev. A KohlerEngines.com
Propane EFI System
TROUBLESHOOTING
Troubleshooting Guide
Condition Possible Cause
Engine Starts Hard
or Fails to Start
When Cold.
Lock-off not functioning.
Faulty spark plugs.
Incorrect fuel.
Incorrect fuel pressure.
Crankshaft position sensor loose or faulty.
TPS set incorrect (ECU Reset and TPS Learn).
TPS faulty.
Engine temp sensor faulty.
Faulty coils.
Low system voltage.
Faulty injectors.
Faulty battery.
Loose or corroded connections.
Engine Starts Hard
or Fails to Start
When Hot.
Faulty spark plugs.
Lock-off not functioning.
Fuel pressure low.
Insuffi cient fuel delivery.
TPS set incorrect (ECU Reset and TPS Initialization).
Crankshaft position sensor loose or faulty.
TPS faulty.
Engine temp sensor faulty.
Faulty injectors.
Engine Stalls or
Idles Roughly
(cold or warm).
Faulty spark plugs.
Insuffi cient fuel delivery.
TPS set incorrect.
TPS faulty.
Faulty engine temperature sensor.
Faulty injectors.
Engine Misses,
Hesitates, or Stalls
Under Load.
Fuel injector(s), fuel fi lter, or fuel line.
Dirty air cleaner.
Insuffi cient fuel pressure or fuel delivery.
Vacuum (intake air) leak.
Improper governor setting, adjustment or operation.
TPS faulty, mounting problem or TPS Initialization Procedure incorrect.
Bad coil(s), spark plug(s), or wires.
To Next Page
Loading...
