Need help figuring out changing codes - P0455 to P0172/P0175

[slowride]

Sorry for the late reply, had some family stuff come up. Im near Greensboro, NC and would be willing to take a drive if needed to meet up with somebody with the Tech 2 that could check the calibration and maybe update it if needed. I managed to get the fuel comp reset so I could get it to pass inspection. It still doesnt kick in to fuel relearn mode after refueling though, I checked several times. Thats got to be part of the problem with it suddenly jumping to a high alcohol percent reading but thats getting above my pay grade lol