10.22
ELECTRICAL
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
EFI DIAGNOSTICS
EFI Component Testing
All EFI component info rmation an d dia gnostic testing
procedures are located in Chapter 4.
Refer to Chapter 4 “Electronic Fuel Injection System (EFI)”
whe
n diagnosing an EFI system or component.
FUEL SENDER
Testing
1. Drain the fu el tan k a nd r emove it fr om th e vehicle
(see Chapter 4).
2. Set th e f uel ta nk on a fla t su rface. U sing a n O hm
m
eter, measure the resistance of the fuel sen der as
shown below.
3. Allow the sender float to sit in the e
mpty position and
compare to specification.
4. Slowly tilt the tank so that gr
avity moves the sender
float to the full position and compare to specification.
5. If the readings are out of specification,
or if the reading
is erratic or LCD display “sticks”, check the following
before replacing the fuel pump assembly:
• Loose float
• Float contact with tank
• Bent float rod
If none of the conditions exist, th
e fuel sender assembly is
faulty. Replace the fuel pump assembly (see Chapter 4).
Fuel Sender - Empty: 90 ± 4.5
Fuel Sender - Full: 6 ± 1
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