2005 800 Sportsman EFI sputters
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If you do have a t-bap harness problem(big IF), a lot of times NO codes will show on speedo OR even "false" codes may show up.Even hooked up to Digital Wrench, codes don't often show up unless a positive break in wiring! Even have had plenty of codes"21"(loss of synchronization) and "23(bad ECU) show up on the speedo!! One way is to feel the wires and if you find a "soft' spot in the wiring,possibly could be the bad wire. Also you can try the "jiggling' method one Polaris engineer suggested! While running in neutral at higher speeds,jiggle the wires and see if you notice a change in the engine! Sounds squirrely,BUT I did find one t-bap harness problem this way! Plus to reset the codes just disconnect the battery for a few minutes. After all this my best guess is still the t-bap harness since the usual signs are spitting,sputtering and this is what we replaced the most of on the 500,700 and 800 efi machines. OPT
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