Man screw this AFM bullshit!!! I am currently waiting my truck to be fixed due to two stuck lifters from it. I am on here as we speak to research the best way to turn this "feature" OFF! I do about 90% city driving and on my daily commute, Id bet the AFM is on majority of the time. I bought a V8 for a reason. I shouldn't have to give a little gas, then wait for the computer to make its mind up before I get all 8 cylinders firing as I need more power on my daily drive. I get this has its purpose, but in the city it seems to constantly keep this truck guessing and therefore making for a terrible driving experience.
Sorry for my rant. I have the red ass still this morning and my coffee has not kicked in yet.