I do mine with PowerTuner... Basically I got it hooked up, push a button and it tells me to go WOT (im in park with foot on brake) until i hit the rev limiter then let off. Then it tells me if its successful or not. Thats PowrTuner... i don't know about HPTuner.

If your a member here ... HPTuners.com >> Performance At Your Fingertips do a search for it.