Page 204 - Manual Oficina Polaris RZR 570 13-18

FUEL SYSTEM

FUEL PUMP TEST 5. Turn on the key switch to activate the pump and
If a fuel delivery problem is suspected, make certain the check the system pressure on the gauge. If system
fuel pump filters are not plugged, that the pump is being pressure of 58 ± 2 psi (400 ± 14 kPa) is observed,
activated through the ECU, all electrical connections are the ignition switch, ECU, fuel pump, and pressure
properly secured, the fuses are good, and a minimum of regulator are working properly. Turn the key switch
7.0 volts is being supplied. If during starting the battery off and depress the valve button on the tester to
voltage drops below 7.0 volts, the ECU will fail to operate relieve the system pressure.
the system.
Normal Fuel Pressure:
58 ± 2 psi (400 ± 14 kPa)
WARNING
Fuel is extremely flammable and may cause severe
burns, injury, or death. NOTE
Do not use any device that produces a flame or If the fuel pressure is out of specification, replace the
electrical devices that may spark around fuel or fuel fuel pump assembly.
vapors.
6. If the pump did not activate (Step 5), disconnect the
1. Remove the passenger seat from the vehicle. harness connector from the fuel pump. Connect a
DC voltmeter across terminals “3” and “4” in the plug
2. Cover the fuel line connection at the fuel tank with a
shop towel and disconnect the line from the fuel on the vehicle fuel pump harness. Turn on the key
pump outlet. switch and observe voltage to ensure a minimum of
7 volts is present.
3. Install the Fuel Pressure Gauge Adaptor (PV-48656)
in-line between the fuel pump outlet and fuel line.
4. Connect the hose from the Fuel Pressure Gauge Kit
(PU-43506-A) to the test valve on the Fuel Pressure
Gauge Adaptor (PV-48656). Route the clear hose
into a portable gasoline container or the vehicle’s
fuel tank.

NOTE
If the voltage was below 7 VDC, test the battery, ignition
switch, relay(s), wiring harness and ECU.

7. If the reading is between 7 and 14 volts, turn key
switch off and connect an ohmmeter between
terminals “3” and “4”' at the white fuel pump
connector to check for continuity within the fuel
pump.
NOTE
If there was no continuity between the pump terminals,
replace the fuel pump assembly.

4.18 9926813 R06 - 2013-2016 RZR 570 Service Manual
© Copyright Polaris Industries Inc.