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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Troubleshooting (Poor Starting/Running/Handling/Ride Issues) » 06 Uly electrical issue « Previous Next »

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Guebert3
Posted on Tuesday, April 18, 2017 - 12:48 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The best way to describe this problem is to tell a story of what happened. I took a trip from St. Louis to deals gap last weekend. On the way down, cruising at 80 miles an hour, the check engine light came on and it started running rough for about five seconds. Then it would return to normal and ride fine for another hour or so. Then it would do it again. We stopped and tightened the positive battery cable. This seemed to stop the problem. The following day, we rode about 30 miles of dirt trails and took off towards deals gap. About a mile from the Dragon, the bike just died. It did not want to start immediately. We took the seat off and looked for electrical connections that were loose. We did not find any. We put everything together in the bike started and ran fine for the next 45 minutes. After we made it through the Dragon, we took off towards the skyway. About 20 miles into the trip, the bike died again. Once again, it was hard to start. Once it started, it made it about 400 yards before it died again. We stopped at a local cycle shop and could not find anything. We then rode about 40 more miles and it died again. After that, it would only make it a mile or so at a time before it would die. We limped it back to the campsite, and stripped down as much as we could with the tools we had. We still cannot find anything, and put everything back together. The following day we headed for home. We made it 25 miles to the gas station and refueled. From there, it made it another 30 miles or so and died on the freeway again. After that, it would only go about half a mile at a time before it would die again. From there, we hauled it home. I now have almost the entire electrical system exposed and cannot find any loose grounds or exposed wires. I cannot seem to figure out what would cause such an intermittent issue. Any thoughts?
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Akbuell
Posted on Tuesday, April 18, 2017 - 08:59 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

First might do to check with the folks in the Big,Bad, and Dirty section. They know your bike.

Given what you have looked at , 2 wild guesses come to mind. First, check the ECM at the connections for cracks. Might even try starting the bike and wiggling the connectors to see if the engine stops. Second, running time ( IE heat) may be affecting the CPS. Look at it/sniff it for signs of overheating.

Hope this helps, Dave
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Guebert3
Posted on Tuesday, April 18, 2017 - 12:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I will post over there as well. Thanks, Dave!
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Gabby_duck
Posted on Tuesday, April 18, 2017 - 06:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What engine code did you get
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Gabby_duck
Posted on Tuesday, April 18, 2017 - 06:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You claim you had the check engine light
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Guebert3
Posted on Wednesday, April 19, 2017 - 12:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It didn't save any codes. That's the weird part... however, I went to check the CPS and that green residue was really messed up and breaking down. "Bubbly" would be a good way to describe it. I don't know how to post a pic though... hmmm
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Guebert3
Posted on Wednesday, April 19, 2017 - 12:20 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It says the file size is too large to upload the pic... hmmm
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Gabby_duck
Posted on Wednesday, April 19, 2017 - 05:09 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

That definitely and hopefully the issue remember green use to be metal
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Gabby_duck
Posted on Wednesday, April 19, 2017 - 05:51 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Green is corrosion which causes high resistance in an electrical circuit. No CPS signal to ECM means no fuel to injectors
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Guebert3
Posted on Wednesday, April 19, 2017 - 02:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks for the insight! I hope I have good news next time I get on here!
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Guebert3
Posted on Tuesday, April 25, 2017 - 11:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Well, I replaced the CPS... no dice... it still left me stranded on the way home tonight. I took it out for about 30 minutes before it started acting up. Once it started dying, I could only make it about a mile at a time before it would die again. However, while I was stopped, I left the key on. After sitting for about a minute, the fuel pump randomly turned on. The bike fired right up afterwards and made it about another half mile. Then it did it again. I really wish there was someone in the St. Louis area that had an ECM I could throw on here to see if that is the problem! Haha
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Gabby_duck
Posted on Wednesday, April 26, 2017 - 12:03 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yes its nice to have those extra parts to rule out a faulty one. I have them but I have found most of my electrical problems in my wiring. How many miles on your bike If my memory is correct the 06 Uly had a fuel pump wiring issue and the 77 connector issue. Another thing for trouble issue is remove all your airbox covers seat etc... and while the bike is idling wiggle test all the wiring (wiggle test) harnesses and see if you can recreate the issue.Two areas i have found like this was my 06 uly fuel pump connector (bad crimp on connector pin)and my 09 uly front injector wire was an intermittent break under the wire insulation.
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Two_seasons
Posted on Friday, April 28, 2017 - 03:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What year Uly had the issue with the seat hitting the ECM and cracking it?
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Gabby_duck
Posted on Friday, April 28, 2017 - 07:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

From experience o8 and 09 i don't remember if 06 07 did. The grey connector would crack along the black ecm module
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