I had to turn away 2 customers scheduled for a tune!!! I bought the V1 to V2 upgrade last week. I uploaded the software that cam with the upgrade V7.5 if memory serves me correct??? EFI themselves should know this...

I went to read the current tune on the cars and I would get a message when I would try to read pcm information saying something about that I need to upgrade my software???


I cannot bee the only person to have this problem, anything I am missing?? Do I have to delete V7.3 off my laptop completely?? I am running windows 98 and have never had an issue with the V1 at all, Figures I am trying to tune 99's and cannot...


Help???