CEL again - Fuel Rail Pressure Sensor (I suspect)
Anyone else had this issue pop up. Does not appear to be affecting performance, although my commute this morning stated I got around 24mpg.. which I have never had before, at most it is 22 and some change on my daily 55 mile (each way) commute on the highway, reverse commute on the DC beltway, so no real traffic, cruising speeds mostly.
Dropped it off the other day and I'm being told its a rail sensor and something with the module or whatever that controls the fuel pressure? Something like that. Was yours similar?
I ended up at the dealer. They cleared the code and said if it came back on, they would replace the fuel pressure sensor. It came back on, I have not had a chance to go back to the dealer though.
Also, I noted another issue which may have actually caused the problem. There is a "Y" diverter like hose piece that leads into right emission shut off valve is split, which would cause a pressure problem (just to the left of the oil filter housing). I do not quite understand how the shut off valves work as a whole.. but it might be the problem...
My car has been at the dealer for over a week and they still can't figure out what's wrong. They already replaced the fuel pressure sensor but the light came back on after a short test drive..
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However, here is an update.
The CEL came back, I eventually dropped the car off at the dealer about 2 weeks ago, they replaced the sensor, the fuel rails, and on the test drive they did, the CEL popped again. They have narrowed it down to the fuel injectors, so they have one on order.. from Germany.. so might take a little while. I have a loaner, putting 100 miles a day on it.. oh well
However, here is an update.
The CEL came back, I eventually dropped the car off at the dealer about 2 weeks ago, they replaced the sensor, the fuel rails, and on the test drive they did, the CEL popped again. They have narrowed it down to the fuel injectors, so they have one on order.. from Germany.. so might take a little while. I have a loaner, putting 100 miles a day on it.. oh well

Hope you get your car back soon.
However, here is an update.
The CEL came back, I eventually dropped the car off at the dealer about 2 weeks ago, they replaced the sensor, the fuel rails, and on the test drive they did, the CEL popped again. They have narrowed it down to the fuel injectors, so they have one on order.. from Germany.. so might take a little while. I have a loaner, putting 100 miles a day on it.. oh well

My current fix is to put 4oz of marvel mystery oil with each fill up and when i do it never comes back on. Hence my thought its a fuel pump/filter issue.
Its a service item, and there is a cheaper fix than the dealer $1100 assembly, that is just fitting walbro pumps for $65 a piece. There are threads if you search.
Hope this either helps or eliminates!






