today i was comeing home and i felt a funny vibration while i was driving i stop at my gate and it feels like im sitting in my dads drag car, i get to my parking lot and my check engine light comes on. my car was not cold when this started and it wasnt over heating, i tried disconnecting the MAF and i got an even rougher idol and a rich fuel smell. i went to autozone to get the troublecodes (only place i could think of to go on a sunday) it came up with:

P0303-misfire has occurred in cylinder #3
P1239-speed fuel pump positive feed fault(what ever the **** this is) when looked up this it said that Cyl.3-Fuel Inj.Circ. Open Circ.

i figure the misfire is a bad plug or a bad coil pack but the other one i have no idea where to start, anybody know where i could start.



2001 S4 2.7TT