This thing is freakin retarded. I can't figure out why it's doing it. And according to bullydog, my truck is the only one that gas this issue so they arsnt much help. I've checked the connection in the fuse box, and the obd plug is tight. But it only does it about every other start up. To really make it wierder, it does it less when it's warm it seems like. Sometimes it will go a month and work perfectly. And now it's cooler and it's raining it will freeze up every time truck is started! I cannot figure it out. Any suggestions???