G oog le BadWeB | Login/out | Topics | Search | Custodians | Register | Edit Profile


Buell Forum » Big, Bad & Dirty (Buell XB12X Ulysses Adventure Board) » BB&D Archives » Archive through August 03, 2011 » ECM crack hard to find.... « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Djohnk
Posted on Monday, August 01, 2011 - 08:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

http://goo.gl/ouDCR

After at least 5 close inspections of my ECM over several months time, I think I found the source of the gremlins on my Uly. I gently pushed down on the gray ECM connector (kind of like my seat was doing), and in bright sunlight it revealed a crack. See the picture in the link above.

Symptoms:
- At first check engine lights, then engine misses.
- After several months of the above symptoms, things got worse, I started getting intermittent tach jumps, misfires, loud backfires and engine stalls (I believe the backfires eventually contributed to my throttle body shaft breaking).

I hope this information helps someone else in their troubleshooting.
Top of pagePrevious messageNext messageBottom of page Link to this message

Steveford
Posted on Monday, August 01, 2011 - 09:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yep.
I found it doing the old Wiggle Test on the side of the road and was able to cycle the fuel pump on and off but couldn't believe something like that could actually be the culprit - it CAN'T be the ECM...
Also, when the engine would die the fan would not come on.
Top of pagePrevious messageNext messageBottom of page Link to this message

Motorbike
Posted on Monday, August 01, 2011 - 09:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I looked at the connector and the seat base several times before I realized that they were touching slightly on my 08. I noticed the tiny crack on the ECM, just as you did but I was not having any problems, yet.

I now have an Erik Buell Racing ECM and keep the old one as a spare in the trunk.
Top of pagePrevious messageNext messageBottom of page Link to this message

Reepicheep
Posted on Monday, August 01, 2011 - 09:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks for those pictures, that will really help somebody.

I did the play-doh thing with mine yesterday.... seat contact. That's an 07 with the comfort kit and spacer.
« Previous Next »

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a private posting area. Only registered users and custodians may post messages here.
Password:
Options: Post as "Anonymous" (Valid reason required. Abusers will be exposed. If unsure, ask.)
Enable HTML code in message
Automatically activate URLs in message
Action:

Topics | Last Day | Tree View | Search | User List | Help/Instructions | Rules | Program Credits Administration