Hi every one I need help my 3.8 mustang has been messed up for a while and can't seem to fund the problem. The car idles normal and when I accelerate it dosent pass 2000 rpm and it starts to sputter I've replaced the spark plugs wires the distributor cap I believe it's called and also I have replaced the fuel pump and also the fuel pump driver module and it still does the same thing can some one help me with this issue thanks