Ok need some help diagnosing. Did cp3 and injectors last week. Truck ran awesome for 4 days. Took the wife and kids to pick up the car at the garage for inspection and gave the gogo pedal a good push. Fell on its face and shut off. Figured a fuel line collapsing. I had to reprim the truck to get it to start ever since then. Put clear line from cp3 to the junction block and not getting air. Put on a vaccum gauge and with the truck idling will pull 2inhg at idle and 4inhg full throttle parked. Shut it off and let the rail pressure bleed down. Recrank and the rail pressure doesn't even budge. Prime it up and if fires right off lickity split. Tried unplugging the fpr and at idle will run about 25.5kpsi. Its an lbzsupersport pump. Was retuned and the fuel pressure desired and actual follow suit. Just does not seem to be drawing fuel to start unless its primed.