Page 220 - Manual Oficina Polaris RS1 2018 e 2019

FUEL SYSTEM

NOTE 7. If the reading is between 7 and 14 volts, turn key
switch off and connect an ohmmeter between
A minimum of 10 volts is needed to properly run the fuel terminals “3” and “4”' at the white fuel pump
pump.
connector to check for continuity within the fuel
pump.
WARNING NOTE

Fuel is extremely flammable and may cause severe If there was no continuity between the pump terminals,
burns, injury, or death. Do not use any device that replace the fuel pump assembly.
produces a flame or electrical devices that may spark
around fuel or fuel vapors. 8. If voltage at the plug was within the specified range,
and there was continuity across the pump terminals,
1. Remove the passenger seat from the vehicle. reconnect the plug to the fuel pump, making sure you
have a clean connection. Turn on the key switch and
2. Cover the fuel line connection at the fuel tank with a listen for the pump to activate.
shop towel and disconnect the line from the fuel
pump outlet. NOTE
3. Install the Fuel Pressure Gauge Adapter (PV-48656) If the pump starts, repeat steps 3, 4 and 5 to verify
in-line between the fuel pump outlet and fuel line. correct pressure.
4. Connect the hose from the Fuel Pressure Gauge Kit
(PU-43506-A) to the test valve on the Fuel Pressure 9. If the pump still does not operate, check for correct
Gauge Adapter (PV-48656). Route clear hose into a ECU operation by plugging in a known-good ECU of
portable gasoline container or the vehicle’s fuel tank. the same model.
5. Turn on key switch to activate the pump and check NOTE
the system pressure on the gauge. If system If the pump still does not operate, replace the fuel pump
pressure is within specifications, the ignition switch, assembly.
ECU, fuel pump, and pressure regulator are working
properly. Turn the key switch off and depress the
valve button on the tester to relieve the system
pressure.
Fuel Pressure:
58 ± 2 psi (400 ± 14 kPa)

NOTE
If the fuel pressure is out of specification, replace the
fuel pump assembly.

6. If the pump did not activate (Step 5), disconnect the
harness connector from the fuel pump. Connect a
DC voltmeter across terminals “3” (Red/Blue) and “4”
(Brown) in the plug on the vehicle fuel pump
harness. Turn on the key switch and observe voltage
to ensure a minimum of 7 volts is present.
NOTE
If the voltage was below 7 VDC, test the battery, ignition
switch, relay(s), wiring harness and ECU.

4.34 9928689 - 2018 RZR RS1 Service Manual
© Copyright Polaris Industries Inc.