[subyguy05]

ok guys i have a 2006 5.9 mega cab and i have had efi v2 flash scan for over a year or more now and all the tunes i had worked great.. so i decided to upgrade to the csp5 switch.. great i called nick at cumminstuner.com that did my tunes before and swapped them over free of charge to the csp5 format.. my first attempt after going through the good bbx format loading and putting the perfect king tune on the flash scan.. well i had no luck at all the switch wasnt working it flashed for each of the numbers of tunes and that was that same tune i think stuck on a stock tune.. ok i called cumminstuner.com again said maybe there was a loss of translation between the cummins guys and duramax guys making my tunes up so quick... then sent me the same tunes and the same process on how to get them loaded on well seeing as i wanted to head up north for the weekend i wanted to switch tunes to see milage difference loaded it up and well stuck on what i think is a stock tune can anyone help me out an figure this out give me some input on what im doing wrong?

 

[3brorce]

You flashed the tune in correct not just trying to switch the tune when you havent flashed the tune in yet? Did you try switching the tune with just the V2 and not the switch itself?

 

[subyguy05]

i actually havnt tries that yet i guess.. so i have the pass through switch cause i have a cts monitor.. i guess in the morning i can try an switch the tunes .. just have had rotten luck lately.. have you seen switches bad before? i know it flashes randomly i havnt even mounted it yet so could see the flashes

 

[3brorce]

I would unplug the pass through and plug the v2 directly into the obd. Flash it that way and then try and switch the tune with the v2.