Was driving home from work yesterday and noticed a very obvious loss of power. Was idling rough, different exhaust noise. My fuel pressure gauge doesnt move from about 19# regardless of throttle. It normally idles at 24# and increases with throttle. You can smell fuel when its running. Under the hood i noticed a plug wire came loose and fell off. I assumed that was causing the problems, but after i put it on and tightened the rest of them nothing changed. Any ideas? Im finally going to get a code reader tonight. Just wanted ideas. I recently changed plugs and wires, but that was a couple weeks ago and its been fine.