Sportsman 700 efi sputtering and stalling
2005 Sportsman 700 efi
Started sputtering and occasionally will stall. I'll be driving around and it will get boggy, if I stop and come to an idle it will either low idle around 800 rpm or it will simply stall out. If it stalls out, I will start it and it will run fine immediately after. If it doesn't stall out the low idle will eventually clear itself within a few seconds. I can drive around fine for a bit then it will do it again. I have a flat 2 acre yard so I'm not working it hard. No warning lights showing on the display. Things I've checked or done: I have a fuel psi gage attached and when it sputters or stalls the psi remains around 38 psi I checked the tps and it is at .710 dcv at idle Pulled the plugs and they are golden brown Fresh gas Need help on what to do next?? |
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Look over this "sticky" post on 700/800 efi problems.https://atvconnection.com/forums/pol...ap-wiring.html It explains about the thin wiring and also the manual states that efi problems are 80% wiring related,not a problem with sensors themselves. It may or may not throw codes when this happens,but does sound like what happens with the t bap wiring harness or connector. Erratic idle,stalling,back firing is just some of the symptoms. You can look for any visible bare wires from the t bap sensor and also feel for any soft internally melted wires and the connector itself for any pins that may have pulled back a little. Polaris "repair kits" listed for these are junk! This you can trust me on because I replaced many over and over again. If it's a wiring problems,then this place has a lot better harness repair kits than Polaris has. First repair kit listed.Only The Best
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Thanks old tech, wasnt sure cause codes arent showing up. I ordered the recommended connector, hopefully it fixes my issues.
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Originally Posted by mopar4u
(Post 3304293)
Thanks old tech, wasnt sure cause codes arent showing up. I ordered the recommended connector, hopefully it fixes my issues.
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I had the same problem with my 2005 70EFI .. It was the wiring harness as explained by the tech.. Resolved my issue.
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I've got about 30 minutes on the new tbap wring so far and no issues. I'm cautiously optimistic that this fixed the problem. When I took the old one off someone else had either replaced with the Polaris kit or repaired the wiring of the original. I didn't see anything obvious when I cut the old one out.
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Originally Posted by mopar4u
(Post 3305538)
When I took the old one off someone else had either replaced with the Polaris kit or repaired the wiring of the original.
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I took my 700 out today, first time since my last post and it started doing it again. Its colder out 22deg out. Can tps affect this? I remember last year when I first moved the tps it was at .700vdc instead of .710. Currently I put it at .710, could this be affecting this?
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Originally Posted by mopar4u
(Post 3308174)
I took my 700 out today, first time since my last post and it started doing it again. Its colder out 22deg out. Can tps affect this? I remember last year when I first moved the tps it was at .700vdc instead of .710. Currently I put it at .710, could this be affecting this?
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Could this cause my symptoms?
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