Well this is my first post but I need to find out what is going on with my mustang. If I'm easy on the throttle it will go up to about 4000 rpms while I'm driving but not much more. If I stomp on it then it just completely loses all power. I've heard clogged cats or clogged fuel filter possibly. It does flash the check engine light every now and then too. Any input would be greatly appceciated.