When I complete let off of the throttle and the engine decelerates to below 1k, probably around 9-800 rpm, it gets really choppy. It doesn't feel any different but it's audibly not right. At idle and while accelerating it's fine, no stutter or anything. It seems to me like it could be a possible computer issue? (It's an E4OD truck). It's done this since I've got the truck so I don't attribute it to any of the modifications I've done, but it's become more noticeable.