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I have tried several good working A40 TCMs with the same problem.
I have been in contact with other LBZ Duramax / 6 Speed allison owners with the same problem.
Is there something that i can provide...

Hi Cindy,
Thank you for the reply.
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Attached is a photo of my TCM.
Can you advise?
-Alex

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Hi all,
I'm new to EFI Live / V8 Scan and tune, purchased it about 3 weeks ago to try and diagnose a problem with my 2007 LBZ Duramax / Allison 1000.
E35A and A40 controllers.

Problem 1: EFI...