2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 120Get this manual

2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 120

FUEL INJECTION EFI SERVICE NOTES
General Service Information For more convenient and accurate testing of EFI components, it is recommended dealers utilize the Polaris Diagnostic Software (dealer only), or limited testing may be done manually using the procedures provided 80 of all EFI problems are caused by wiring harness connectionsFollow common sense approach when diagnosing potential EFI issue:

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