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Rail pressure sensor

968 Views 5 Replies 4 Participants Last post by  WES
Has anybody had a problem with them? My truck keeps throwing a code.
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What sort of code? RP too high/low?
What sort of code? RP too high/low?
:agree2: What ya got?
p0191 Fuel rail pressure performance. Thats all it says. I am hooking up a gauge next week so I dont know whats going on with it. The truck doesnt seem to run any differant w/ the light on or off.
there is a flash for the ecm -

Flash: 5.9L DTC P0191 - Fuel Pressure Sensor Rationality
This bulletin involves selectively erasing and reprogramming the Powertrain Control
Module (PCM Cummins) with new software.
2006 - 2007 (DH/D1) Ram Truck (2500 / 3500)
NOTE: This bulletin applies to vehicles equipped with a 5.9L turbo-diesel engine
(sales code ETH) built on or before October 23, 2006 (MDH 1023XX).
thanx guys:thumbsup
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