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hptuners 8.1 chevy

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Old 12-12-2008 | 10:09 PM
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lsxyj
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Default hptuners 8.1 chevy
has any one tuned an 8.1 chevy pickup
i try to tune mine with hp tuners and it fails every time
any help would be appreciated
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Old 12-13-2008 | 08:30 AM
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KLUG'S SS
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Originally Posted by lsxyj
has any one tuned an 8.1 chevy pickup
i try to tune mine with hp tuners and it fails every time
any help would be appreciated
What do you mean by "it fails"?
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Old 12-13-2008 | 12:47 PM
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lsxyj
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it fails in the tcm write
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Old 12-13-2008 | 05:47 PM
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Do you have a 6 speed auto transmission by any chance?

-Bill
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Old 12-13-2008 | 07:49 PM
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lsxyj
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naw its a 2001 with the 5 speed
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Old 12-13-2008 | 11:01 PM
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5speed manual??
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Old 12-13-2008 | 11:32 PM
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lsxyj
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5 speed automatic allison
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Old 12-13-2008 | 11:33 PM
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I have EFILive and have no problems. Does it start writting and fail or does it not connect at all?
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Old 12-13-2008 | 11:47 PM
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lsxyj
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it starts writing and says write fail after the TCM write. I have tried to just change engine parameters and it still fails
Last edited by lsxyj; 12-14-2008 at 12:16 AM.
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Old 12-14-2008 | 12:41 AM
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I had problems with our 06 duramax. I had to do a "read entire", the do a "write calibration only". Had to do it twice so far.
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