PIAGGIO NRG POWER PUREJET, Workshop Manual, Page: 150 / 248

A greater tensioning causes signals TPS1 and TPS2 whose voltage is not as expected by the ECU,
which cancels the reset procedure.
To check that TPS signals are properly reset, use the following procedure:
1- Connect the scooter diagnostic tester
Select the «parameters» function and visualise the indicator showing the «TPS to reset»
GO TO point 2
GO TO point 4
2. The diagnostic tester responds YES. Continue to make the following checks:
- The throttle body is not tampered with
- The control transmission is correctly registered
- The connector of the throttle body is correctly connected
- The electric circuit control meets specs.
GO TO point 3
3. Carry out the manual reset procedure.
4. The diagnostic tester responds NO. The reset procedure was successful.
GO TO point 5
5. For a further confirmation, check the following indications of the "parameters" function.
TPS1 OUTPUT V 0.64
TPS2 OUTPUT V 4.27
TPS1 ZERO V 0.64
TPS2 ZERO V 0.72
The voltage reported here corresponds to a possible condition.
GO TO point 6
6. Check the following conditions:
TPS1 OUTPUT = TPS1 ZERO
TPS2 TPS2 ZERO = 5V
YES point 7 NO point 8
7. The TPS reset meets specs.
8. Repeat the reset procedure using the manual mode.
Specific tooling
020460Y Scooter diagnosis and tester
Manual T.P.S. reset
MANUAL RESET
This procedure is required when the ECU or the throttle body is replaced. Before resetting, check the
following conditions:
- The throttle body has not been tampered in pre-calibration
- The throttle body connector is properly inserted
pure jet injection
NRG Power Purejet
INJ PJ - 34