2006 6.0 dies

[wnperformance]

2006 6.0 dies out slowly and cuts off at road speed can let set a few mins and it will start back but does it again good fuel pressure 70 lbs ficm voltage 45 to 48 injection pressure normal has 3 codes po263 culinder 1 contribution po 269 culinder 3 contribution po 528 visctronic drive fan speed sensor circuit malfunction it will set and idle all day but when you drive it it act like you are losing fuel pressure thanks kaya for the info

[kaya@bernhausen]

if you want any type of a quality response, you need to be a little more descriptive.
what exactly happens when it dies? does it sputter to a stall? or does it just suddenly cut out?
what are the exact codes you're throwing? with the numbers, please