Just for grins I took a 10K resistor and fed the A/D input pin with 5 volts. The reading I got was 65472!
Yes, because you have the freaking thing configured wrong for the way that ADCIN works for crying out loud :-)
Just set the justification bit correct, as Ioannis shows AND as we've already discussed in the other thread where we went thru all this resolution and justification stuff last time.

OK, so it's a 0.07psi and not 7psi as I based my code around..... Well, then we need to change the scaling but lets see if it works at all first.

/Henrik.