im looking for a stock fuel/rail pressure sensor. i have a code for fuel pressure sensor voltage too low and my truck is running like a big cam car...anyone able to help a guy out? my trucks an 07 5.9 but any 5.9 common rail should work...

 

I bet your sensor is Fine. I see you have a rail gauge. Try pullin the connector out and cleaning it with contact cleaner and compressed air. I've never heard of the sensor going bad

 

somethings wrong...i get a fuel pressure sensor voltage too low code. my rail pressure at idle is 700 and its running like Edit...i really really hope i didnt smoke a piston injectors id be cool with...any suggestions?

symptom: rough rough lopey idle like a big cam car

 

Could be a failed sensor, or a stuck FCA. Above idle does it run o.k.?

I see the Arson CP3 in your sig.......I think another member on here had a problem with one barrell coming apart........could cause the actual low psi.

 

everything is back to stock but fca...no it still misses above idle also

 

Does it sound like this.https://www.dieseltruckresource.com/...d.php?t=204301

 

Did you try removing the RP gauge?Also buy some dielectric grease and put it on the factory and quad plug going to the RP sensor.Might ned to verify the fca is good also.The dealer can check command RP vs actual RP with a DRB scanner.Might better go that route first.Alot cheaper than buying parts you might not really need.My local dealer only charged me for 30 minutes labor when I had a similar issue.

 

awesome guys i think an fca fixed wfo's problem also...im actually running a different fca ill switch back...

 

Key words, this solved my problem when mine was running rough a couple of weeks ago. I did this to all of my connections i could reach.

 

im gonna have to try it. im so scared i scored a hole or messed up a piston its that crappy feeling you get everytime something breaks. tomorrow ill unplug fca see what happens along with putting dielectric grease on everything. i have a new fuel/rail sensor on its way also thanks for the help guys ill keep you posted

 

Unplug the fca and start the truck it should spike up to about 17k to 20 some K. If it does you prob dont have a sensor out but faulty fca.

 

If the guage doesn't spike.....but it sounds like an old 12V, then you probably have a bad sensor!

 

Is the Smarty the only electronics you using???

 

smarty is only electronics using yes sir. im gonna try the unplug fca deal first thing in morning ill keep you guys posted thanks so much!! smarty is loaded back to stock also

 

Just read through that thread. He stuck a new sensor on and it fixed the problem.