ok i have checked the plugs on the wiring and what little of the wire i can see that is'nt inside the main wiring harness, there is'nt anything that seems to be wrong ?? everything is hooked up corectley and nothing seems to be loose , when i pulled my comp off i unpluged the data link conector and i could'nt find a plug to go back into that plug?? i didnt install the comp myself it was on the truck when i bought it so i'm not sure if there is anything that plugs back inot the data link plug or not?? if anyone has had any kind of map problems i'd love to hear about them.