Under hard acceleration the car will hit 3k and sometimes hold 3k but the speed will keep increasing but really slowly like if there's no boost. Sometimes happens at 4k and 5k as well. I checked for a boost leak but didn't find anything what else could this be? Also about 1,000miles ago the epc flashed on for a split second barley noticed it. Could this be my fuel pump. Or throttle body or accelerator?