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EFI / FUEL SYSTEM
CHAPTER 5
EFI / FUEL SYSTEM
GENERAL INFORMATION............................................................................... 5.2
SPECIAL TOOLS ...................................................................................... 5.2
EFI OVERVIEW .......................................................................................... 5.3
EFI SYSTEM COMPONENTS ......................................................................... 5.3
EFI OPERATION OVERVIEW.......................................................................... 5.4
EFI SERVICE NOTES ................................................................................. 5.5
INITIAL PRIMING / STARTING PROCEDURE.......................................................... 5.6
FUEL INJECTORS ....................................................................................... 5.7
FUEL INJECTOR OPERATION OVERVIEW............................................................ 5.7
FUEL INJECTOR O-RINGS............................................................................ 5.7 5
FUEL INJECTOR TROUBLESHOOTING............................................................... 5.8
FUEL INJECTOR TEST................................................................................ 5.8
FUEL INJECTOR REPLACEMENT .................................................................... 5.9
FUEL LINES .............................................................................................5.11
FUEL SYSTEM ASSEMBLY VIEW ....................................................................5.11
FUEL SYSTEM ASSEMBLY VIEW (EVAP) ............................................................5.12
FUEL LINE REMOVAL / INSTALLATION ..............................................................5.13
FUEL LINE REMOVAL / INSTALLATION (EVAP) ......................................................5.14
FUEL LINE ROUTING ................................................................................5.15
FUEL LINE ROUTING (EVAP) ........................................................................5.16
FUEL VENT LINE ROUTING..........................................................................5.17
FUEL VENT LINE ROUTING (EVAP) ..................................................................5.19
VENT LINE TERMINATION FITTING..................................................................5.20
FUEL PRESSURE SENSOR ...........................................................................5.21
OPERATION OVERVIEW.............................................................................5.21
FUEL PRESSURE REGULATION.....................................................................5.21
FUEL TANK / PUMP .....................................................................................5.22
FUEL TANK ASSEMBLY VIEW........................................................................5.22
FUEL TANK REMOVAL / INSTALLATION..............................................................5.23
FUEL PUMP OPERATION OVERVIEW ...............................................................5.25
FUEL PRESSURE TEST .............................................................................5.25
FUEL PUMP REPLACEMENT ........................................................................5.27
FUEL SENDER TEST ................................................................................5.29
9930583 R01 - 2020-2021 RZR PRO XP / XP 4 Service Manual 5.1
© Copyright Polaris Industries Inc.
