2010 Polaris Sportsman 850 Service Manual, Page 70Get this manual

2010 Polaris Sportsman 850 Service Manual, Page 70

ELECTRONIC FUEL INJECTION TPS Replacement NOTE: The correct position of the TPS angle on the throttle body is established
processed by the ECU and compared to its programming for determining the fuel and ignition requirements during operationThe
ECU also uses this signal to determine when to activate the fan during operation ECT Sensor Test 6Remove the (2) Phillips-head
mounting screws and replace the TPSTo quickly rule out other components and wiring related to the ECT, disconnect the harness
from the ECT sensor and start the engineAfter few seconds, the fan should turn on and the "Check Engine" indicator should
display on the instrument clusterThis indicates all other components are working properlyRefer to Chapter for additional
ECT informationPolaris dealers can test the sensor by using the Digital WrenchTM Diagnostic Software (dealer only) IMPORTANT:
If replacing the TPS or throttle body, you must perform the "TPS Adjustment" procedure7Refer to "TPS Adjustment" for setting