I just ordered the hp tuner,should be here in a few days.I have an 07 hummer h3 with a 3.7.I put a Turbonetics turbo off of an 06 on it,kit worked good for over 2k miles.Just resently it started smoking.Turbonetics said that i modified the kit to make it work,so there is nothing they can do.So my question is should i flash the pcm back to stock or leave it aloan till i get the tuner and see what's wrong with it.thanks for any help with my problem.