ford F250 2006 6liter powerstroke will not start when hot

Question

what would make it not start when hot if it cools down for 15 mins. it starts right up

Answer 1

P0405 Exhaust gas recirculation sensor A circuit low

U1900 Anti lock brakes

U1900 is for the ABS system , where this is with the ABS module communication fault, but would not be the cause of a no start condition. The EGR sensor A this is for its refference voltage, it can and will affect the ICP (injector control pressure) which share the EGR refference voltage.correct for the EGR code condition