4.13
ELECTRONIC FUEL INJECTION
4
9924125 - 2013 RANGER RZR / RZR S / RZR 4 Service Manual
© Copyright 2012 Polaris Sales Inc.
The two-tooth gap creates an “interrupt” input signal,
corresponding to specific crankshaft position. This signal
serves as a reference for the control of ignition timing by
the ECU. Synchronization of the CPS and crankshaft
position takes place during the first two revolutions each
time the engine is started. This sensor must be properly
connected at all times. If the sensor fails or becomes
disconnected for any reason, the engine will stop running.
CPS Test
The CPS is a sealed, non-serviceable assembly. If fault
code diagnosis indicates a problem with this sensor, test
as follows:
1. Disconnect CPS (3-wire) harness connector on left-
ha
nd side of vehicle located below the transmission.
2. Connect an ohmmeter between the pin terminals
le
ading from the Yellow and White wires. A resistance
value of 560 10
% at room temperature should be
obtained.
3. If the resistance is correct.
- Test the main harness circuit between the sensor
co
nnector terminals and the corresponding pin
terminals at the ECU (see wiring diagram).
- Check the sensor mounting, air gap, flywheel ring
g
ear for damage or runout, and flywheel key. Follow
the “CPS Replacement” procedure to inspect CPS
and flywheel ring gear for damage.
4. If the resistance is inc
orrect, follow the “CPS
Replacement” procedure.
CPS Replacement
Removal
1. Safely support the rear of the vehicle off the ground
a
nd remove the left-hand rear tire.
2. If not done already; disconnect the CPS harness
connec
tor (see illustration under “CPS Test”).
IMPORTANT: In order to remove the CPS, the rear
p
ortion of the exhaust system and the mounting
bracket between the transmission and rear gearcase
will need to be removed.
3. Remove the exhaust pipe between the elbow pipe and
th
e exhaust silencer. Remove the exhaust silencer.
4. Remove the (3) bolts retaining the front portion of the
m
ounting bracket to the transmission. Retain the
bolts, washers, and spacers for installation.
CPS Resistance Specification:
Yellow to White: 560 10
%
Yellow
Black
White
CPS Harness
Serious injury may result if machine tips or falls.
Be sure the vehicle is secure before beginning
this service procedure.
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