I'm doing a 14 5.3 swap into a 06 jeep. I had the computer done by howel engineering as they are local to me. I went back today and had them reflash after a phone conversation trying to trouble shoot. We did a complete reflash and I'm still getting the same 7 codes and still no spark or fuel. I've done the starter relay resistor trick and he went thru all the vats tables. I'm wondering if he does not have updated software for the e92.

The codes are: p018c fuel pressure sensor low
P0192 fuel rail sensor a low input.
P127c fuel rail pressure
U0100

I had these codes before the reflash and he went thru and turned them all off but they came back. The u0100 has me concerned.

Any thoughts on this?
Thanks.