Getting p0191 fuel pressure rail circuit. Code.

[Stang6969]

Oh...i am also stock...no deletes...if that helps.

 0 Comment(s)

[Polaraco]

@texasbest2006, before someone else gets angry, what's the year make and model, and any modifications you may have.

LOL My bark is fiercer than my bite. Thanks for covering me. LOL

That's my only real peeve. Gotta know what it is to start.

 0 Comment(s)

[Polaraco]

2011 Ram 2500 4" lift on 35's.

I have been getting this code for a while. It also triggers a p2BAC code that will not go away. Around town it will come back almost immediately. On road trip (600+ miles) it will remain extinguished.. New rail pressure sensor installed...lookes like a short in the circuit. I can't find it...any advice?

P2BAC NOx Exceedance - Deactivation of EGR - OBD-Codes.com

You have something else going on. Sometimes you'll get erroneous codes indicating one thing when it's actually something else. You're NOX is apparently high. I'm trying to remember what causes high NOX. I believe it's too lean. That could be dirty injectors or the rail pressure is actually low. That would give a poor spray off the injectors. Hard to call without someone taking a rail pressure reading. Yes the fule filter could be plugged. You're on the right track. Get back to me when that's done.

 0 Comment(s)