Saved tune in v8 now won't load in v7

[djv86]

I downloaded a tune from a stock lmm 2007 and wanted to open it up in the v7.5 tune program just to snoop around and it won't even find the file to open it.

Is there a program or converter to allow the tunes saved in a v8 to beable to be loaded in the v7.5?

[GMPX]

Do you have matching installs for both V8 and V7 ? In otherwords you can't have an old version of V7 installed if you have a newer version of V8.

[djv86]

They are both that I downloaded from efi website

[djv86]

Anybody know why I downloaded a lmm diesel tune using v8 saved it and it will not open in v7.5 it actually won't even pop up in the folder as if it was wrong file type

[GMPX]

You downloaded it as in 'read from the truck' or a file you found on the internet?

[joecar]

Is the file type .tun or .ctd or .ctz...?

[djv86]

I downloaded and saved it from the vehicle itself. I'll let you know file type it saved as in a few mins when I arrive to work

[djv86]

Saved as a .tun

[djv86]

Sorry it saved as a .ctz

[joecar]

You will need a later version of V7 tunetool... try this: Update-Oct-5-2014 (https://forum.efilive.com/showthread.php?24704-Update-Oct-5-2014)

( you will need to updater both V7 and V8... and also V2 firmware... and also V2 BBx configuration )

[djv86]

Thank you I did have older versions I guess I redid the programs and it works.. Thanks again joe