http://img167.imageshack.us/my...8.jpg
click the above pic to get medium or large picture. if you see the number 3 terminal on the starter switch, it goes to ignition coil and also back to the relay box to give power to fuel pump. if any hot wire is touching this wire, your car will continue running. a wire for example could be loose under the relay box by battery.
do a search because it might be a common cause for this.