Polaris 2013 RANGER RZR S Service Manual page 134

ELECTRONIC FUEL INJECTION
Fuel Injector Test
NOTE: The harness connector and locking spring is
bonded to the fuel injectors with an epoxy. DO NOT
attempt to disconnect the connector from the fuel
injectors. Damage will occur to the injector and/or
harness if attempting to separate at that location.
Separate the fuel injector from the vehicle harness
as shown in the illustration below.
Fuel
Injector
Harness
DO NOT
Disconnect Here
IMPORTANT: Take note of PTO and MAG fuel injector
harness connectors before disconnecting them. The
harnesses are different and can not be connected
incorrectly (PTO - Gray; MAG - Black).
The fuel injectors are non-serviceable. If diagnosis
indicates a problem with either injector, test the resistance
of the fuel injector(s) by measuring between the two
harness pin terminals:
Disconnect
and test here
Fuel Injector Resistance Specification:
11.4  - 12.6 
NOTE: Be sure to connect like colored fuel injector
connectors for proper engine function (PTO = GRAY,
MAG = BLACK).
4.18
Disconnect Here
9924125 - 2013 RANGER RZR / RZR S / RZR 4 Service Manual
© Copyright 2012 Polaris Sales Inc.
Fuel Injector Replacement
1. Be sure the engine has cooled enough to work on.
2. Remove seats and rear service panel (see chapter 5):
• RZR / RZR S: Remove both driver and passenger
seats
• RZR 4: Remove both rear passenger seats
3. Remove the rear cargo box (see chapter 5).
4. Place a suitable container below the quick connect
plug at the end of the fuel rail. Hold a shop rag over
the plug and remove it to depressurize the fuel
system.
Fuel Rail
5. Disconnect the harness for the fuel injector(s) located
next to the ignition coil. Cut the plastic tie strap and
push the harness for the fuel injector(s) up over the
air box to allow fuel injector removal.
IMPORTANT: Take note of PTO and MAG fuel injector
harness connectors before disconnecting them. The
harnesses are different and can not be connected
incorrectly (PTO - Gray; MAG - Black).
Fuel Injector
Harnesses
Quick Connect
Plug