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Buell Motorcycle Forum » XBoard » Buell XBoard Archives » Archive through March 23, 2007 » XB ECM Problems « Previous Next »

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Penders_xb12r
Posted on Thursday, March 22, 2007 - 10:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I have a '06 XB12R and put a open airbox kit on it with a airbox cover that has scoops on it. Then I made a custom stainless oval exhaust that has no baffling. I bought a new race ecm and was talking to the service department at Harley and they said that the bike will run to lean. Which is understandable, but what can I do to remap the fuel curves. Can this be done on a race ecm or do I have to go with the DirectLink system? Please help!!!!
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Darkducati
Posted on Thursday, March 22, 2007 - 11:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Direct-link. Or you could try the race ECM and run it on a dyno to see what the fuel curve looks like. You may consider it close enough.
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Nasty73z
Posted on Thursday, March 22, 2007 - 11:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Direct Link only. Period. The Race ECM is very picky, it doesn't run well with 99% of the aftermarket exhausts, let alone a homemade jobber with no back pressure. DL your stock ecm, Al and others can do their maps but because you have special exhaust, you should probably have the bike dyno tuned.
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Penders_xb12r
Posted on Friday, March 23, 2007 - 12:10 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Should I remap the stock ecm or race ecm because I have both. But if there is no advantage I will use the stock and remap it and sell the race one.
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Metalstorm
Posted on Friday, March 23, 2007 - 12:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

If you use the stock ecm you will need an exhaust servo emulator to avoid the check engine light.

If you use the race ecm you will not need an emulator since the race ecm doesn't require a signal from the servo. In fact it doesn't have any provisions for the servo at all from what I hear.
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Xbswede
Posted on Friday, March 23, 2007 - 09:14 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

if your wanting to save money then sell the Race ECM ($150 - $200) buy the emulator for $45. (very small and plugs right in hidden under the seat).
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Tiller269
Posted on Friday, March 23, 2007 - 09:29 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

You are probably better off keeping the race ECM, dumping your home build exhaust and investing in a drummer. At least that way you can save yourself a lot of time and hassle with dyno's.
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