Filter
Top Products
4.30
ELECTRONIC FUEL INJECTION
9923142 - 2011 RANGER RZR / RZR S / RZR 4 Service Manual
© Copyright 2010 Polaris Sales Inc.
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 Resistance Tests
The TPS is a non-serviceable item. If it is faulty, it must be
replaced. It can be tested using the following method:
With the test leads connected and the meter set to the ohms scale,
observe the reading at the following pin locations of the TPS:
TPS Tester / Regulator
The TPS reading can be checked by using the Throttle Position
Sensor (TPS) Tester (2201519-A).
Set-up the TPS Tester Wire Harness (PU-47466) and TPS Tester
Regulator (547927) according to the instructions that
accompanied the tester. Make sure the 9 Volt battery is new.
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
TPS Resistance Readings
Pins Throttle Position Resistance
-GND -----
- Closed 4k - 5k(reference)
- Open 1150 - 1250(reference)
- ----- 4k6k
1
2
3
TPS Connector