I wish I had read this prior to lending it to my friend that has 4.0. Only lent it as his one died and he had to keep the dyno going while his v2 was sent out. I haven't used hp tuners since 3.3 as I use PCMTEC these days. The guys at vcm said that once it is used on 4.0 and onwards it no longer can...

Hey all,

Has anyone had issues of late with tuner pro shutting down when they select the xdf ?
I have uninstalled and reinstalled the program several time and it is still doing the same thing.
Hopefully someone will be able the shed some light on this issue.

Cheers