I started a project years ago, finally got to the point of tuning, bought everything i needed. got PCM Hammer to read my 411 pcm and saved the BIN , downloaded a XDF for a 2002 5.3, opened everything in Tuner pro. Made a couple changes and tried saving it and im getting a checksum error.
What i currently have is a 2002 GMC Sierra PCM 12200411 operating system is 12212156, I rebuilt the 5.3 and put in a BTR stage 2 cam. I am running headers and wanting to delete VATS and remove the rear 02s
Im running a 4l60e that has been beefed up a little .

When i opened tuner pro i never saw where to delete the VATS or turn off the rear o2 sensors

Any help will be greatly appreciated

Thanks
Curtis