45
. Lambda probe
46
. Fuel pump
47
. HV coil
48
. Injection warning light
49
. Throttle body position
50
. Diagnostics socket
51
. Immobilizer aerial
52
. Injection ECU
Troubleshooting procedure
Engine does not start
ENGINE DOES NOT START EVEN IF PULLED
Possible Cause
Operation
Immobiliser enabling signal
System not encoded
System not efficient, repair according to the indications of the
self-diagnosis
Faults detected by self-diagnosis
Pump relay
HV coil
Injector
Engine speed timing sensor
Fuel system
Fuel present in the tank
Fuel pump activation
Fuel pressure (low)
Injector flow (low)
Power to the spark plug
Spark plug Shielded cap HV Coil (secondary insulation)
Parameter reliability
Engine temperature
Distribution timing adjustment - injection start
Intake air temperature
End of compression pressure
End of compression pressure
Starting difficulties
ENGINE STARTER PROBLEMS
Possible Cause
Operation
Faults detected by self-diagnosis
Pump relay
HV coil
Injector
Engine speed timing sensor
Air temperature
Engine temperature
Start-up speed
Starter motor and solenoid
Battery
Ground connections
End of compression pressure
End of compression pressure
Power to the spark plug
Spark plug
Shielded cap
HV coil
Engine speed timing sensor
Ignition advance
Fuel system
Fuel pressure (low)
Injector flow (low)
Injector seal (poor)
Correctness of the parameters
Engine temperature
Injection
Vespa Primavera125 - 150 i.e. 3Valvole (2013)
INJEC - 188
Summary of Contents for 150
Page 1: ...SERVICE STATION MANUAL 1Q000118 EN Vespa Primavera125 150 i e 3Valvole 2013 ...
Page 4: ......
Page 6: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Page 27: ...INDEX OF TOPICS TOOLING TOOL ...
Page 37: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Page 51: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL ...
Page 55: ...Vespa Primavera125 150 i e 3Valvole 2013 Troubleshooting TROUBL 55 ...
Page 56: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Page 117: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Page 123: ...INDEX OF TOPICS ENGINE ENG ...
Page 182: ...INDEX OF TOPICS INJECTION INJEC ...
Page 203: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Page 222: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Page 229: ...INDEX OF TOPICS CHASSIS CHAS ...
Page 244: ...INDEX OF TOPICS PRE DELIVERY PRE DE ...
Page 249: ...Transmission 10 53 124 136 Turn indicators 79 Tyres 11 V Vehicle 8 118 119 ...