Hey guys. My check engine light is on and reading P1000. My computer tells me P1000 is "Sytems check incomplete". My brother-in-law (who is a mechanic) told me i need to drive like 62 miles for the computer to do a full cycle and reset itself. I used the computer to turn off the light and drove like 80 miles straight. The light stayed off for the next three times I started the truck but came back as I was driving. I ran it again and it was the same code. I deleted all stored codes so I know it is only this code. Any ideas how to get rid of this?