Fuel Rail Pressure

[kevinkidder]

Hi all,

I’m not a mechanic, but would wager that many of you are. It is your opinion on my scenario that I am looking for.

I have a 2022 JLU Willys, Diesel Turbo. I have only had it a short time, about 2000 miles so far. I love it.

A few weeks ago, I had a warning indicator light come on. I made an appointment at the dealer, but before I got there, the light had gone off. They checked the codes, and said it was a "Fuel Rail Pressure Too High" code. The mechanics looked at it, and didn't find anything wrong. So I took it home, with the understanding that if it happened again, to bring it in right away.
Fast forward to Monday, and suddenly, there it is again. The light comes on, the idle of the truck changes, and the auto-start/stop disengages. I drive straight to the dealer, they check the code, and it is the same "Fuel Rail Pressure Too High".

Now the mechanics have had my baby for a few days, and can't find anything wrong. They are allegedly in contact with Chrysler to see what to do about it.

As I said before, I'm not a mechanic, but wouldn't this behavior indicate a bad Fuel Rail Pressure Sensor? If I'm standing outside holding a thermometer that is reading 95 degrees F, and my feet are standing in snow, I might suspect the instrument.

Or is there more to this story? Is this common? Feedback and experience are welcome.

Thank you
Kevin

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[DMT]

I just had a similar code and CEL light. It got cleared in a couple restarts. I wonder if its connected to that recall for the fuel pump that has no solution yet.

 

[Wrangler man]

I get the same thing, though and behold you take it to the dealer and they can't replicate your scenario, but it rears its ugly head at the worst unexpected times. With the new Ford Bronco around which has similar issues. What I was told by the flatbed tow truck driver that flatbedded my Jeep to the dealership after my Wrangler threw a Christmas tree of Lights across the dash. It will only get worse because people are hooked on gadgets, courtesy bells,whistles, lights. Ford and FCA jockeying to win applause from the majority. The true "wheeling" crowd are stuck, while the mall crawlers say give me more pizazz. More and more Wrangler people are sold on things such as advanced Safety Systems, adaptive cruise control, etc-etc. Just adds to the complexity of the over-complicated shure-to malfunction technical computer s**t show. Miss the sweet spot of the JK on "just enough comfort". WAY MORE DEPENDABLE, as far as electronics ( or lack of).

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