A friend with an LS2 had it tuned by reputable shop. I beleive tuner used LS2 Edit. I tried to download tune twice after car had been to tuner. Both times EFILive tells me the tune is locked. Funny thing is I did modify a tune from this same tuner on an E38 07 Z06 and had no trouble downloading, modifying and uploading changes.
If a tuner had locked a tune in the past, could they supply the key and could it be used in EFILive to unlock the tune?
Is there anything unusal about LS2 TUNED ecms that creates issues with downloading tun file?