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-   -   Fuel rail pressure sensor (http://www.competitiondiesel.com/forums/showthread.php?t=40155)

JOESHTRDDSL 11-08-2008 10:47 PM

Fuel rail pressure sensor
 
What does the truck do when the rail pressure sensor goes out. I installed my stage three cp3 and the truck ran better than ever. Rail pressure was way up, idled smoother, and there was a lot more power. I took the truck down and washed the engine and it still ran great all the way home(about 5 miles.) An hour later I went out to dinner and about 3 miles from the house the truck started fuel knocking and died. I restarted it and it was still fuel knocking and would hardly idle and the cel was on. I checked the codes and found p0192, p0251, and p0524. 192 is rail pressure sensor voltage to low. 251 was a code for the fca. 524 my smarty said unknown code. cleared the codes and checked the connections. found water in the rail pressure sensor so I blew it and the plug out untill they were dry and no change and the 192 code came back. bypassed the rail pressure gauge and my pressure box and pluged the original harness into the rail pressure sensor and still runs the same and the p0192 came back again. Any help would be great and sorry so long. Thanks, Joe:bang

TCDiesel 11-09-2008 06:39 AM

Unplug the sensor for 3/4 hrs and it may dry out, You should not take and use High Pressure air... If this does not work we have used sensor that are good for about 1/2 the cost of new..

triton 11-09-2008 07:58 AM

the pressure relief valve can cause the way it's running too. Unless you've seen some really high psi though... it should be ok. You can test it by removing the banjo bolt and starting the truck. If fuel comes out of the valve... it's bad.

JOESHTRDDSL 11-09-2008 09:09 AM

Thanks for the info on the sensor. I have my pressure relief capped but thanks for the thought. Thanks for the input, Joe

larry 01-13-2009 06:55 AM

what ever came about? I am having the same problem.

JOESHTRDDSL 01-13-2009 10:19 AM

My rail pressure sensor was bad. I replaced it and all is good. Thanks for all the help to all.

Joe

07dodge 01-13-2009 04:39 PM

Easiest way to tell if its the sensor, is if you have a rail guage that hooks in with a pigtail to the rail sensor, your gauge will do funky stuff. When mine went out my gauge would read 20,000psi with the truck shut off, and was all over the place with it running.

JOESHTRDDSL 01-13-2009 05:41 PM

My RPG went to 0 and would not change. I thought it was a gauge problem at first.

Joe

larry 01-14-2009 05:37 AM

Perfect thanks

07dodge 01-14-2009 11:51 AM

If you guys need a sensor i can get one for ya.

GOT-Torque 01-14-2009 03:51 PM

How much are new sensors? I have a used one to sell but don't know what to ask for it?

07dodge 01-14-2009 04:14 PM

New ones from dodge are around $400. I can sell you guys one for around $200

JOESHTRDDSL 01-14-2009 05:19 PM

$200.00 wow that is a deal.:rockwoot:

paulb 01-14-2009 05:47 PM

Quote:

Originally Posted by 07dodge (Post 576471)
New ones from dodge are around $400. I can sell you guys one for around $200

New?

homewrecker 01-14-2009 06:25 PM

This place here list the RP sensor for $194,but they also show a complete rail,RP sensor and relief valve for $314.That seems like a hell of a deal if its true.
http://hoeslidiesel.com/store/page13.html

SledPuller21 01-14-2009 08:09 PM

Buy em straight from cummins...

figueroa530 06-13-2009 08:50 PM

Im having th same issues Joe and i just ordered my sensor yesterday hopefully its that so i can finally give you a ring and tune my truck.


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