False Knock? How are your motor mounts...if they are really bad you might try replacing them. Also check the DP...when I went WOT a couple times scanning I got almost 9* and was like?!?!? On a 3.4" with a XP Cam setup??!?! Not happening...turned out my DP from my Pacesetters was making contact on the Front Sway Bar...flipped it upside down and it cured it right up
Hope you figure it out man.