Yep, just sayin wut worked for me. It sounds like thats the problem being that I have done everything the same as he did and his truck is doin the exact same thing mine did. and after i replaced the MAP it all cleared up. I purposely searched for MAP articles so I can help those who have the same problems I did. Hell im so confident thats the problem i'll buy the thing for him and he can see if thats it. HAH good luck with everything though, im just sharing any valuble info.