ITS YOUR FUEL INJECTORS. I went through the SAME crap last year. The code was the same. My Cylinder #5 injector was locked open. Ford replaced under the 100K fuel ink warrenty.
I also had my o2 connector on the passenger side become unclipped from the fire wall insulation underneath and the connecter fell on top of my header and had partially melted through. Then when I would hit a bump it would pop that fuse when the exposed wires grounded out on the header metal. It took forever to find he problem cause the harness is way up there and that one stupid fuse circut controls a ton of ****.
05 Screw FX4-Limo tint,wind deflector,AR Mojave Teflon 17's,33" Nitto TG's,2" AS leveling kit,Dominator2steps,Daystar Baja bar,4-130w KC's,LPP headers,14" maggie,Mag-hytec diff cover,Detroit Truetrac LSD,Pioneer premiere indash nav/system,2 pioneer premiere 10" subs, polk 571's,Optima yellowtop.