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Thread: 06 L18 Allison TCM?

  1. #1
    Junior Member MaxPF's Avatar
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    Default 06 L18 Allison TCM?

    Does EFI Live support the rare 06 Allison 6 speed TCM used behind the 8.1L gas engine?

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    I think so, Ive heard of a bunch of 8.1L guys tuning their TCMs... Can you read it out using the appropriate Allison TCM option?
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    Junior Member MaxPF's Avatar
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    No idea - I haven't tried it yet. Does EFI Live have the capability of doing a full flash to an A40 TCM?

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    You can't do a full flash to the Allison, requires to much time as said by either Ross or Paul once before.
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    Junior Member MaxPF's Avatar
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    yeah, I remember reading that now. Hey guys (Ross and Paul), how about an option to do full flashes for us diehards?

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    Lifetime Member THEFERMANATOR's Avatar
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    Quote Originally Posted by MaxPF View Post
    yeah, I remember reading that now. Hey guys (Ross and Paul), how about an option to do full flashes for us diehards?
    I believe they said even with high speed it would take upwards of a half hour to 45 minutes if they could get it to go through. I used to have the 8.1L 6 speed flash, but I can't remember where I found it at. I'm pretty sure it was here somewhere.
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    Junior Member MaxPF's Avatar
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    The time factor doesn't bother me. It's easier than making an appointment with a friend at GM and driving halfway across town, lugging along a stand alone harness and power supply, so he can flash it with his GM tools.

  8. #8
    Junior Member MaxPF's Avatar
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    Bump this up again. So, I want to ask the EFILive crew: Since you already have programming coded to full flash an Allison TCM, any chance of us users getting it? Again, I am not concerned about the time factor. Pretty please!

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