I think somehow it picked up all 4 tunes and flagged that. I’m not completely sure, I’ll ask my buddy for more details and update. If someone has passed in 2020 with proper DP by just selecting the stock tune that would save me $80 for the reflash.
That is insane......wait, it's CA, why am I surprised. lol
The dealers figured out they could just read file size and compare to find tunes, but they have the info on how big the newest OEM file is. So CA is keeping a database of OEM ECU file sizes on all vehicles, requiring the OEMs to then feed that database and keep them updated?
I'd be interested to see if that is the case or if your buddy misunderstood and had another issue with readiness flag or non-CARB part.