Wow Oreillys was not pulling these codes.

[DefendHawaii]

So I went to autozone to return some plug wires from a 5.7 and I had them scan the new suburban. I had done some stuff ad went to see what would come up. So here is what she printed out. P0171 P0174 as well as now I am getting P0302 code.

I bought a new fuel filter to see if that helps.