P0451 code for Ford - 2005 Explorer V8

Question

After changing to a new fuel cap, changing all 4 O2 sensors, a new fuel pump and float, blowing out all the fuel lines, replacing the solenoid for the evap sensor and replacing all of the spark plugs, I still keep getting a P0451 code.
I was experiencing a vacuum when removing the fuel cap before, but I don't notice that now.
I also wasn't able to get fuel, as it kept shutting off and I thought it was full because the gauge wasn't working, but also don;t experience that now after the above repairs.

It now reads: Evac pressure sensor switch range

HELP!!!

Answer 1

Hi there,

With all that you have done to solve the evap code, it may be time to test and replace the evap pressure sensor itself.