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Buell Forum » XBoard » Archive through January 26, 2012 » Help needed from someone with running XB « Previous Next »

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Firemanjim
Posted on Wednesday, January 18, 2012 - 03:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
I have a 2005 XB12 here that came in with running issues. Noticed the TP reading jumps around while idling. After determining it is not a bad sensor--tried 2 more--or an ECU issue--tried known good one-- I checked the 5 volt signal from the ecu at pin #1 on grey connector and running it goes up to 6.3 volts. Can someone see if another bike is same. Wish I had another runner here,but NO!!
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Reepicheep
Posted on Wednesday, January 18, 2012 - 05:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
I would, but mines in pieces waiting for a new head to come in (badweb ROCKS for getting parts).
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2008xb12scg
Posted on Wednesday, January 18, 2012 - 09:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Jim Im more thn happy to bring my 08 xb over tommorrow after 2pm, or tonight if it helps
Thomas 510eight28 - 74four0
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Firemanjim
Posted on Thursday, January 19, 2012 - 02:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Thomas, thanks, but an 08 won't work as the FI system very different.
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Panhead_dan
Posted on Thursday, January 19, 2012 - 09:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Will an '06 XB12X work? If so, by grey connector do you mean the connector you use to get codes?
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Skinstains
Posted on Thursday, January 19, 2012 - 10:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
I have a running 05 12R. What do you need to know ? Tell me what to put where (don't say it) and I'll get you readings tomorrow. I have a Buell Race ECM in it, the one that came with the pipe and K&N back then.
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Firemanjim
Posted on Friday, January 20, 2012 - 01:00 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
05 or 06 good. On ECM there are 2 connectors,on the grey connector the #1 wire--IIRC is red with tracer--- is the 5 volt feed to all the sensors,I need a volt measurement with key on/not running and one running.Thanks guys!
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Rays
Posted on Friday, January 20, 2012 - 04:09 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Just measured my '06 Uly (standard ECM) and with ignition & killswitch ON it measures 5.04v. With engine running it is steady on 5.11v.
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Skinstains
Posted on Friday, January 20, 2012 - 01:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
I will check mine this evening
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Firemanjim
Posted on Friday, January 20, 2012 - 04:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Found the problem--he had tapped into 5 volt signal to feed his aftermarket speedo and it was back feeding voltage making 5 volt go to 6-7 volt. TP was not happy with that.
Now damn thing has no spark----- excpt coil test----
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Skinstains
Posted on Friday, January 20, 2012 - 04:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
I'm heading out to the "Clare Island" now, do you still want me to get you a reading ?
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Firemanjim
Posted on Saturday, January 21, 2012 - 02:22 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Skin, thanks but got it knocked now. Sure was a puzzler.
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Firemanjim
Posted on Monday, January 23, 2012 - 01:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
So, now my 5 volt signal is good but the darn thing has no spark! Not BAS sensor, and coils fire when you run the diagnostic test in ECM Spy.
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Firemanjim
Posted on Monday, January 23, 2012 - 02:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Dang wire to cam sensor was broken!
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Spacecapsule1
Posted on Monday, January 23, 2012 - 07:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
...any idea how that happened?

how did you track that one down in case someone else (me) needs to someday?
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Firemanjim
Posted on Tuesday, January 24, 2012 - 02:33 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Knew all the sensors were 0-5 volt,measured input to TP and it was at 6-7 volts which skewed all sensor readings. Looked for what was not stock--speedo--and looked at wiring to find he had wired into the 5 volt feed and it was backfeeding voltage.
On Cam sensor, it had no spark but would fire with coil test. Hooked test light to injector and when they were not firing only 2 things can be bad--trigger or ecm.
Have been learning a ton on this stuff from looking over the shoulder of my Aussie friend,Greg Watters, as he sets up our data loggers and turbo stuff.
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