Iac Replacement; Throttle Position Sensor (Tps) - Polaris Ranger RZR SW Service Manual

ELECTRONIC FUEL INJECTION

IAC Replacement

1. Remove the seats, rear main service panel and the rear
cargo box. (See chapter 5)
2. Loosen the hose clamps retaining the throttle body.
3. Remove the throttle body from the intake track and plug
intake boots with a clean shop towel.
IAC
4. Disconnect vehicle harness from IAC.
5. Remove the (3) Phillips-head mounting screws and remove
the IAC from the throttle body.
6. Install the new IAC and torque the mounting screws to 17.7
in. lbs. (2 ± 0.5 Nm).
7. Reconnect vehicle harness to IAC.
8. Reinstall the throttle body and securely tighten the hose
clamps.
9. Reinstall the rear cargo box, rear main service panel and
seats. (See chapter 5)
4.28

THROTTLE POSITION SENSOR (TPS)

Operation Overview
The throttle position sensor (TPS) is used to indicate throttle
plate angle to the ECU. Mounted 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.
TPS
Stop Screw
(Factory calibrated)
DO NOT ADJUST
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.