I am scratching my head?
I have a 97 disco that I bought as a project car. I am getting p1313 & p1314 fault codes. I have new cats , new o2 sensors, new cylinder heads, new plugs, new wires, new battery, new alternator. I bought the car assuming I would go through every thing. I did not expect to have fault when I fired it up. Cleared them but they come back in five minutes or so. Any ideas out there?

LR