Ucantfadeaharper81

I have a 2007 chevy equinox and i started getting the codes 2122 or 2135 so i found out i needed to replace my throttle body and i did then the same message popped up then i found out that my radiator had a crack replaced that now my truck constantly tells my check stabilitrak and power in engine regine reduce even though wen i drive i can pick up speed slowly but surely my at home mechanic has reset the codes and everything but still samething even did the battery thing same thing so my question is do i have to take my truck to an actual shop for them to relearn my computer because nothing else has work not even taking the key out the ignition for a min. Or longer please somebody tell me something i have a family and cant afford all these repairs n parts