Polaris 2012 RANGER RZR 570 INTL User Manual

4.28
ELECTRONIC FUEL INJECTION
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
IAC Replacement
1. Remove the drivers seat and disconnect the negative
(-) battery cable.
2. Remove the cargo box access panel.
3. Disconnect the vehicle harness from the IAC motor.
4. Remove the (3) Phillips-he ad mounting
screws and
remove the IAC from the throttle body. The screws
can also be acc essed from th e R H re ar wh eel well
area.
5. Install the new IAC and torque the mounting screws
to specification.
6. Reconnect the vehicle harness to the IAC motor.
7. Reinstall the cargo box acce ss pa nel, conn ect the
n
egative (-) battery cable and install the drivers seat.
THROTTLE POSITION SENSOR (TPS)
Operation Overview
The th rottle po sition senso r ( TPS) is used to ind icate
throttle plate angle to the ECU. Mo unted on the throttle
body and operated directly off the end of the throttle shaft,
the TPS works like a rheostat, varying the voltage signal
to the ECU in direct correlation to the angle of the throttle
plate. This signal is processed by the ECU and compared
to the internal pre-programmed “maps” to determine the
required fuel and ignition settings for the amount of engine
load.
= T
IAC Mounting Screw Torque:
17.7 in. lbs. (2 ± 0.5 Nm)
IAC
The correct position of the throttle body stop
screw is established and set at the factory.
DO NOT loosen the throttle body stop screw
or alter its position in any manner. The stop
screw controls the air flow calibration of the
throttle body. If the stop screw is
repositioned or adjusted, the throttle body
assembly must be replaced.
TPS
Stop Screw
(Factory Calibrated)
DO NOT ADJUST

Polaris 2012 RANGER RZR 570 INTL Specifications

General

Brand	Polaris
Model	2012 RANGER RZR 570 INTL
Category	Offroad Vehicle
Language	English