PIAGGIO NRG POWER PUREJET, Руководство по ремонту, Страница: 176 / 248

If there are difficulties in doing the check directly
on the pump, proceed with the check through the
wiring. Reconnect the fuel pump connector and
measure the resistance between the specific tool's
pins, keeping the switch in the «OFF» position.
14 - 17 =…….Ohm (5Ohm measured)
YES point 26 NO point 25
25- A resistance of around 0 Ohm indicates the
presence of a short circuit. A resistance signifi-
cantly greater than the standard values indicates
low conductivity. In these cases, replace the
pump.
GO TO point 24
26- Keeping the ECU conditions disconnected and
pump connector connected, check that with the
key switch in the «ON» position, the pump starts
to rotate each time that pin 14 is grounded.
1 - 14 (bridged) = pump activated
YES point 28 NO point 27
27- There is electric absorption but the pump does not rotate. Replace the pump due to mechanical
damage.
GO TO point 24
28- Especially in case an error is verified in the «occurred» or «stored» state, repeat activation of the
pump several times in order to distinguish any faults deriving from a manifold that is not perfectly effi-
cient.
GO TO point 29
GO TO point 30
29- Some pauses are present. Check the connectors more carefully and replace the pump, if necessary.
30- The pump rotates normally. The pump connection electric system is efficient. Connect the ECU and
check that the pump activates for around 4 seconds each time the switch is turned «ON» and constantly
when the rpm- phase (engine in rotation) signal is present). Replace the ECU if there are any faults.
GO TO point 31
31- For a more complete fuel pump check, it is best to proceed with the checks on the current absorbed
and the hydraulic characteristics of the pump.
See also
Footrest
pure jet injection
NRG Power Purejet
INJ PJ - 60