No start?
 

I have a 2006 with a 6.0 powerstroke in it. I bought the scangauge 2 and it seems to be working. I have ficm power, I have high icp while cranking. For some reason it is not showing and ipr readings. The truck starts up after about five seconds of cranking. but shuts off after two seconds. When it does start up I hear a clicking noise coming from under the hood then she fires up right away after the clicking. Questions are, can there me something wrong with the pcm or the ficm. Why would I not be getting a ipr reading. Yes I double checked the codes I was typing in.