Twice my 2006 F250 6.0 stalled and wouldn't restart until the next day when it started right up. Third time no go. Crank and no start. Got a scan gauge and while cranking find FICM at 48 volts, IRP at 84.5%, SYN at 1, and ICP at 0. Replaced the ICP Sensor to no avail. Before I dig deeper under the hood and replace the IRP valve I would like some advice. I am told it it unlikely it is the pump in a 2006. Please help.