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PIAGGIO 500 cc - Fuel Injection - Fuel Pump Circuit Control and Diagnosis

PIAGGIO 500 cc
239 pages
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Fuel injection
9 - 41
9
Set to "ON" with the emergency switch set to "RUN" and the side stand raised.
There is pump revolution for 2 seconds.
Circuit control
Proceed as follows:
YES
NO
Attempt ignition.
Check that the engine revolution matches that of
the pump.
The pump does not turn or turns
continuously.
The electrical feed of the pump is
conformant.
YES
NO
Connect diagnosis tester 020460Y
to the vehicle system. (See page 9-17).
Attempt ignition.
Select the "ERRORS" function menu.
Check for the presence of anomalies.
Malfunctioning of:
- injector
- HV coil
- signals panel
YES
Malfunctioning of the
pump command relay circuit.
YES
NO

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