thedude

My stang has been idling bizzarely and not making power at random instances. When I start it, it takes a good minute before the idle levels out. Sometimes when I down shift the idle drops to 500 or the engine cuts out all together. Recently and randomly I'll accelerate and there is no power. I have a fuel pressure gauge under the hood. Yesterday after warming it up, I checked the gauge. Seemed a steady 38 psi but then I reved it and it dropped to 35. I ran the codes but got a bunch of random codes. Seems like my fuel pump but I really don't know. Also, the fuel pump and maf are only 2 years old and I just replaced the throttle positioning sensor.

Thoughts?