Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

possible to update a "tuned" PCM from A4 to M6?

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Old 06-20-2008, 02:20 PM
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possible to update a "tuned" PCM from A4 to M6?

I have a 1995 Z28 with a modified LT1 (cam, headwork, supercharger, etc) and the PCM has been custom tuned for the engine. I want to switch from the A4 to a M6. I have read that it is best to go with a M6 program when doing the conversion. If I sent this PCM out to get programmed will they be able to dump my existing tune info to disk or print it out so they would have that information? I assume I would need the M6 stock program loaded on my PCM and then updated with my custom tune info. Would I be able to do all of this if I bought the tunercat software?

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Old 06-20-2008, 06:41 PM
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You do need to use a M6 program if you swap transmissions.
Tunercat can be used to copy the tables from your current program to the M6 program. I'm sure any of the tuners could do it too.
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Old 06-20-2008, 07:17 PM
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Great, thanks for the response!
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Old 06-21-2008, 12:01 AM
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What all is involved in changing the tune from a4 to m6 in tunercat? Is it just going into the ECM constant table and disabling the auto trans option?
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Old 06-21-2008, 03:46 PM
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Originally Posted by CamaroKid89RS
What all is involved in changing the tune from a4 to m6 in tunercat? Is it just going into the ECM constant table and disabling the auto trans option?
See this post:
https://www.camaroz28.com/forums/sho...91&postcount=2
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Old 06-22-2008, 11:41 AM
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Well then, I still need a stock M6 95 tune then, so I can transfer settings from my current tune over. Email to kale___9@hotmail.com please.
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