Help. I was getting p0171 and p0174, and at varying times p2195, p2197, and p0193. I've replaced the fuel rail pressure sensor, bank 1 01 o2 sensor, pcv valve, egr valve, all vacuum lines look good. What the heck am I missing? It runs fine til its warm or until its got load on it then the sputtering starts again. Any suggestions?

It is a 2007 mustang v6