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Old 07-01-2010, 08:14 AM
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Weasel Weasel is offline
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Join Date: Jul 2008
Location: New Orleans, La
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I know BMW has some software in them to look for the cheap aftermarket tuners that just manipulate signals for power, but that would store faults and wouldn't affect the Alpina or Dinan software... I'd contact Alpina and Dinan separately and express your concern describing your problem to see if any other customers had similar issues and if there was/is a fix.

Also, when it does the jerking does it feel like maybe the tranny is the cause, or is it definitely in the engine? Does any warning come up on the cluster or CCC display?
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