So this sounds stupid, but is there a printable glossary of abbreviations that my i3Platinum uses so I can cross reference it while trying to make my truck run like trash because I don't know what I am doing? Most of these abbreviations are familiar to some degree but others resemble no PIDs I'm ...

Yeah you're doing something wrong, or the tuner is, or the truck is.
I have an 05 Silverado 4x4, xcab, 6.0 and 40k miles. Also have 285/70R17 M/Ts, MBRP exhaust and a CIA which have been on for over 2 years. Obviously it isn't a daily driver. Have averaged 12.3 MPG on the dash (before lift and tires ...