I had the same codes when my fuel pump failed. They are caused by the ecu not being able to compensate for the reduced fuel pressure (or the fuel pressure dropping out of spec, same difference). My pump initially recovered but at a reduced pressure (20 psi) and I then had a check light although the engine would run at idle.
After I replaced the pump, the ecu light was extinguished and I cleared the faults using the S&S software.
