im having trouble with my 95 gt. my car suddenly dies. it sometimes starts up right away, and sometimes it takes about 10 minutes to cool down b4 it starts back up. i put the key to the on position, and i hear the fuel pump, but it's like my car isn't getting any fuel. Ive replaced fuel pump, fuel filter, spark plugs, wires, air filter. also the car, while driving, feels like it's stumbling, rough idling. i've heard some people say it's the fuel pump relay, others say fuel pressure regulator. What could it be??? any suggestions?? anything that i can try to pinpoint the problem????