I've got a Vortec 5.7/4L60E in my 2002 4WD truck (Sonoma ZR2) that I am going to mod with EFI Connections 24X reluctor and add the LS2 coil packs. No problem doing this...but now I would like to add electronic throttle to the mix. I'd like to keep 4WD functioning and have the ETC working as well. Been trying to find a base tune I can use with the '411 PCM. What determines if a tune can support ETC or not, as well as 4WD? Will doing some segment swapping from various tunes work, or is it the operating system that solely determines these things? Do I just change these things in the vehicle platform options?
Any help/suggestions welcome.