- Spark plug
The MIU control unit manages ignition with the best advance ensuring four-stroke timing (ignition only
in the compression phase) at the same time.
The MIU injection-ignition system controls engine functions by means of a pre-set program.
Should any input signals fail, an acceptable working order of the engine is ensured to allow the user to
reach a service station.
Of course, this cannot happen when the rpm-timing signal is missing, or when the failure involves the
control circuits:
- Fuel pump
- HV coil
- Injector
The control unit is provided with a self-diagnosis
system connected to an indicator light in the in-
strument panel.
Failures are detected and restored by the diagnostic tester.
In any case, when the fault is no longer present, the data storage is automatically cleared after 16 cycles
of use (cold start, running at regular engine temperature, stop).
The diagnostic tester is also required to adjust the idle mixture.
Specific tooling
020922Y
Diagnosis Tool
The MIU injection-ignition system carries out
checks on the rpm indicator and the electric fan for
radiator cooling.
The MIU control unit has a decoder for the anti-
theft immobilizer system.
The MIU control unit is connected to a diagnostic
LED on the instrument panel, that also carries out
the deterrent flashing functions.
The MIU control unit power supply is furthermore controlled by the emergency switch; to allow further
safety of the vehicle.
Vespa GTS Super 125 i.e.
Injection
INJEC - 125
Summary of Contents for GTS Super 125 i.e.
Page 1: ...SERVICE STATION MANUAL 677714 EN Vespa GTS Super 125 i e ...
Page 4: ......
Page 6: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Page 31: ...INDEX OF TOPICS TOOLING TOOL ...
Page 43: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Page 53: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL ...
Page 57: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Page 114: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Page 122: ...INDEX OF TOPICS INJECTION INJEC ...
Page 123: ...Vespa GTS Super 125 i e Injection INJEC 123 ...
Page 167: ...Vespa GTS Super 125 i e Injection INJEC 167 ...
Page 186: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Page 210: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Page 225: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS ...
Page 228: ...INDEX OF TOPICS CHASSIS CHAS ...
Page 240: ...INDEX OF TOPICS PRE DELIVERY PRE DE ...
Page 244: ...INDEX OF TOPICS TIME TIME ...