"Unsupported Parameters"!
does when you hook it to a new vehicle. I don't know
if there's an explicit way to force it. But anyway, first
you need to have the right PID set understood. Then,
you should reconstruct all of those custom PIDs and
histos. If you went and edited those up in advance,
against a default or wrong-vehicle PID set (like, maybe
the instructions are for a LS1 and maybe there is some
difference somewhere) then learning the new base PIDs
might just rip up your work, like you see.
Might have to go and check PID by PID looking for cases
where your LS2 selections, maybe don't match (either
name or number) what you're working from.
There's probably folks with more experience at the custom
PID stuff, over on the hptuners forum.
Posts the functions you are using
Tonight I will try to calibrate the MAF, I'm so newbie in tuning but will see what the results might be.
Thanks guys for all the info!

