2009 Polaris Sportsman 850 XP EFI EPS Service Manual, Page 66Get this manual

2009 Polaris Sportsman 850 XP EFI EPS Service Manual, Page 66

ELECTRONIC FUEL INJECTION TPS Replacement NOTE: The correct position of the TPS angle on the throttle body is established
passes through the cylinder and by the sensor probe, varying resistance reading which is relayed to the ECUThis signal is
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 "Over Temp" 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