Page 203 - Manual Oficina Polaris RZR 570 13-18

FUEL SYSTEM

OPERATION OVERVIEW FUEL SENDER TEST
An electric fuel pump assembly is used to transfer fuel to If the fuel gauge reading on the instrument cluster is not
the EFI system from inside the fuel tank. This assembly working, or if the display reading differs in large
includes the fuel pump, fuel filters, regulator and fuel comparison to the fuel in the tank, perform a resistance
gauge sender. The pump is rated for a minimum output test on the fuel sender.
of 25 liters per hour at 58 ± 2 psi (400 ± 14 kPa) and has Disconnect the fuel pump / sending unit connection and
non-serviceable fuel filters.
measure the resistance. If out of specification, replace
When the key switch is turned to "ON", the ECU the fuel pump assembly.
activates the fuel pump, which pressurizes the system for
start-up.
The ECU switches off the pump preventing the continued
delivery of fuel in these instances:
• If the key switch is not promptly turned to the "start"
position.
• If the engine fails to start. 4
• If the engine is stopped with the key switch "on" (as in
the case of an accident).
In these situations, the “check engine” light will go on, but
will turn off after 4 cranking revolutions if system function
is OK. Once the engine is running, the fuel pump remains
on.

Fuel Sender Resistance Specifications:
Full: 6 ± 1 Ω
Empty: 90 ± 4.5 Ω

q Fuel Gauge Sender e Fuel Pump
Unit
w Fuel Pickup Filter r Fuel Sender Float

9926813 R06 - 2013-2016 RZR 570 Service Manual 4.17
© Copyright Polaris Industries Inc.