It doesn't just cut fuel but also shuts the valves off to the cylinders being cut by shutting oil flow off to those lifters. It's just a new name for Displacement on Demand.

Looks like it can be edited pretty easy.

http://forum.efilive.com/showthread.php?t=3783

 

AWESOME!

You know gm has no long term (any real long term) results on this thing so it's best to advertise the crap out of it during all of this "green" time and work out the limiting factors as time goes on. You know the saying, we can fix any lawsuits or claims cheaper than we can dealing with 250,000 recalls on an overly aggressive AFM setup. Just like dfco as far as going lame on the settings. Let the dumb *** f-er's on those truck forums experiment with it. (The "man" is always watching)