mxu 500 irs efi Manuale-dofficina : Pagina 433

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          22. FUEL INJECTION SYSTEM                                                   MXU 500i




 TPS INSPECTION
 Support the ATV on a level surface.


 Turn the ignition switch to "ON".
 Measure if the ECU voltage outputs to TPS
 between the following terminals of the TPS
 connector.

            Terminal                   Normal
         V/R (+) -V/G(-)                5V

 Throttle position sensor (TPS) resistance
 (at 20°C/68°F) 3500~6500




                                                         Cable Ends

 REMOVAL
 Loosen the throttle cables with the adjusting
 nuts.
 Disconnect the throttle cable ends from
 throttle seat.




                                                 Adjusting Nuts



                                                        TPS Sensor     T-MAP Sensor


 Disconnect the TPS, ISC and T- MAP
 sensor connectors.
 Loosen the air cleaner connecting hose band
 screw.
 Loosen the intake manifold band screw.
 Remove the throttle body, T-MAP sensor,
 TPS sensor and ISC sensor as a set.


                                                                      ISC
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