truck keeps dying as if key shut off

[mpirtle81]

Got a 2000 7.3 and it keeps stalling while driving like u shut the key off .u can b driving about 60 and all of a sudden the truck jerks and the wait to start light and water in fuel lights come on sometimes u have no pedal response if its idleing it will die any suggestions,I've replaced the cps with a black international one,truck has 280000 mile on it