I have a 2001 f250 with a 7.3. I bought it with a bad motor (Dead cyl) I paid a guy 4000.00 to pull and total rebuilt and put back in. My problem is every time I take off and get into it just a little the STUPID check engine light comes on. I shut it off and restart it and the lights off. (I WAS TOLD OVER BOOST) The truck is stock other then being 20Thou over and a Super Chip. The other problem is if I drive it and shut it off and try to restart right away it it cranks forever. The motor has only 2700 on the rebuild. Any easy fixes for a newbie.