I have a problem with a friend's A6. The engine is AKE and the throttle seems to have a mind of it's own. Here is a video of the problem: Notice how I try from 0:48 to hold the throttle pedal steady at ~20% and the rpm skyrocket from ~2200rpm to over 3500rpm. If the pedal is at 19%, the rpm stays at ~2000-2100. Also to mention, when the rpm goes sky high, it blows some black smoke at the back.