Quote Originally Posted by 1project2many View Post
My understanding is that you cannot "read" the OBD2 6.5 calibration from the pcm without modifications inside the pcm. The pcm construction allows erase and write operations only.
Yeah, didn't have high hopes for getting a read. I was able to flash a file with GM DPS this evening, I've still got work to do, but the flash was successful.

I'm pumped that I even got a flash to go through. I'll keep everyone posted when I make more progress. (hopefully tommorrow)