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225 Posts
Discussion Starter #1
Has anybody had a problem with them? My truck keeps throwing a code.
 

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1,821 Posts
What sort of code? RP too high/low?
 

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225 Posts
Discussion Starter #4
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.
 

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Tech Specialist
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458 Posts
there is a flash for the ecm -

SUBJECT:
Flash: 5.9L DTC P0191 - Fuel Pressure Sensor Rationality
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control
Module (PCM Cummins) with new software.
MODELS:
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).
 

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Discussion Starter #6
thanx guys:thumbsup
 
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