Do you think it would be possible to update/flash the programming of a 2018 802A to get the "measurements" info, or do we suspect that there are hard parts installed into the 2019s? I would assume the data is already present in my 2018; just need a device or re-program to view the PIDS.
NO. To add that function would require someone to write code for a new dash, like they did for the 19.
You can't just tweak Forscan, because the code to display the data is not there.