I have a 2005 5.4 3 valve that I just got finished rebuilding. I had it bored .30 over and put the biggest comp cams for stock heads. The problem I am having is the port that you plug the code reader in does not turn on my reader. Does this port have a fuse for it and what else should I check for. The next question is when the motor gets up to temp my oil pressure drops to about 13 lbs. at idle when I accelerate the pressure goes up to about 40 lbs. There is no strange nose coming from the motor. Sorry for the long post just getting all the info to you. Thanks for any help.

 

no one else has had this problem? I am just wanting to get a idea of where to stat looking. Please any help would be appericated greatly