No, just load this to the tuner and let it import then load it to the vehicle to set the tcm back to stock, then you may retune.

Thank you for the update! Does the update run through the "Update Agent"? I downloaded the update and copied and pasted it to my Intune and I get the message " Please ...

Youre saying get the programmer back to stock? Cause it doesn't give me an option to do that on the programmer.

thanks for your help

I got my Intune i-1000 all updated and went to put a tune on my 08 Yukon Denali and it downloaded the original PCM and TCM backup files, but as soon as it got down with the TCM backup file. I got an error message saying "TCM has been tuned before by a Diablosport product. Please email the TCM backup ...