4.22
ELECTRONIC FUEL INJECTION
9924096 - 2013 RANGER RZR XP 900 / RZR XP 4 900 Service Manual
© Copyright 2012 Polaris Sales Inc.
4. Remove the (2) screws (D) retaining the air box and
loosen the hose clamp (E) retaining the intake hose
to the air box. Remove air box assembly from vehicle.
5. Disconnect the vehicle harness (F) from ECT sensor.
6. Drain the coolant so the level is below the sensor (see
Chapter 2 “Coolant Drain / Fill”).
7. Using a wrench, remove and replace the sensor,
applying a light coating of thread sealant to aid
installation.
8. Torque the new ECT sensor to specification and
connect the vehicle harness to the sensor.
9. Reinstall the air box assembly:
• Be sure the lower air box post in placed properly
into the rubber grommet (G).
• Be sure the air box boots fully seat onto the dual
throttle body before tightening the hose clamps.
10. Reinstall the breather into the air box and tighten the
hose clamps retaining the air box to the throttle body.
11. Reinstall the (2) screws that retain the air box.
12. Position the intake hose onto the air box and tighten
the hose clamp.
13. Reinstall the cargo box access panel.
14. Add the required amount of coolant and bleed the
system (see Chapter 3 “Cooling System Bleeding
Procedure”).
ECT Sensor:
17 ft-lbs (23 Nm)
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