2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 130Get this manual
FUEL INJECTION CRANKSHAFT POSITION SENSOR (CPS)
General Information
The engine speed sensor is essential to engine operation, constantly monitoring the rotational speed (RPM) of the crankshaftDisconnect crankshaft sensor connector from wiring harnessTest resistance between the terminalsA reading 20 at room temperature (20 C, 68 F) of 185 should again be obtainedNOTE: If the resistance reading is incorrect, remove the screws securing the sensor to the mounting bracket and replace the sensorIf the resistance in step was incorrect, but the resistance of the sensor alone was correct, test the main harness circuit between the sensor connector terminals and the corresponding pin terminals in the main connectorCorrect any observed problem, reconnect the sensor, and perform step again3
Interrupt CPS