Anybody have any ideas, I have the x3 tuner from brenspeed and it was not passing emmisions so I took it back to stock ran it for a couple of months and the other day I went to instal tune back in and now it does not run without going into limp mode I cant even return back to stock with out going into limp mode also 07GT

 

Ok here's what happen,somehow when I was loading tune it blew a fuse and that caused about 5 codes to throw. So replaced fuse and loaded tune and runs like a charm.

 

which fuse ??