Troubleshooting Procedure - VESPA GTS Super 300 ie 2008 Service Station Manual

Injection
20. Radiator electric fan
23. Lambda probe
24. Engine speed sensor
25. H.V. coil.
26. Fuel injector
27. Engine temperature sensor
28. Fuel pump
29. Diagnosis socket
30. Injection electronic control unit
31. Immobilizer antenna
34. Instrument panel
36. Headlight relay

Troubleshooting procedure

Engine does not start
Possible Cause
Immobiliser enabling signal
Presence of faults detected by the self diagnosis
Fuel system
Power to the spark plug
Parameter reliability
End of compression pressure
Starting difficulties
Possible Cause
Presence of faults detected by the self diagnosis
Start-up speed
End of compression pressure
Power to the spark plug
INJEC - 186
ENGINE DOES NOT START IF ONLY PULLED
ENGINE STARTER PROBLEMS
Vespa GTS Super 300 ie (2008)
Operation
System not encoded
System not efficient, repair according to the indications of the
self-diagnosis
Pump relay
HV coil
Injector
Revolution timing sensor
Fuel in the tank
Fuel pump activation
Fuel pressure (low)
Injector capacity (low)
Shielded spark plug cap HV coil (secondary insulation)
Coolant temperature
Distribution timing - injection ignition
Intake air temperature
End of compression pressure
Operation
Pump relay
HV coil
Injector
Revolution timing sensor
Air temperature
Coolant temperature
Starter motor and solenoid
Battery
Ground connections
End of compression pressure
Spark plug