Originally Posted by
GMPX
I mean you contact Punisher Performance (I think they market their tunes as Reaper, right?) and say I'm not happy with the tune (this is what you've said). They could Email you an updated tune file to flash in to the ECM using your Autocal assuming it is something in the tune they can change and there isn't some other problem causing the lack of change when switching tunes. I'm not saying there is anything wrong with the Punisher Performance Reaper tune, Tyler has been tuning for a long time so you probably need to speak to them about why you aren't happy with it or why it wasn't what you were expecting. Unless I am totally misreading what you are trying to say here.
Yes, you can (and did) overwrite any previous tune in the truck.
No, your old tunes are GONE, when you flashed in the new ones the old tune is wiped out forever.
It does, the tunes on your Autocal is what is in the ECM now, not the original CSP tune you had.