Hi, First post and I need a bit of help.

I had my truck tuned about two years ago but have some lingering problems and I'm trying to get it re-tuned to get things straitened out.

I created some data logs and put them on dropbox so my tuner could access them. Looking at the scan and tune software it appears I have version V8.2.2.303 on my laptop. My tuner emailed me back and said he can't see anything in the files, and if I am using V7.5 when I created these. The files look good to me, I can step through everything and see the data changing.

Anyhow, my question; is there any way to convert these files I already created to something usable in V7.5? I assume I will have to uninstall my scan and tune tool and find 7.5 for my laptop? Thanks!

Oh, the big problem I am having is almost a complete lack of engine braking. I had it when first tuned, but it seems the truck calibrated it back out of it's self. I had the same issue on the stock tune.

2009 GMC Sierra LY5 SLE.

Thanks all for the help!