The base file was a stock one all I did was the necessary changes for an "off road only" vehicle, flashed it in everything worked fine truck ran fine no CELs then I get on the highway punched it once and started cruising..A few seconds later i get a ding and CEL for p1011 and the truck felt like it lost a lot of power. From what I've read it has something to do with fuel pressure and or lift pump. Could this have happened because of flashing ina new tune or is it a separate problem?