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benjaminhofmann74

Peugeot 308 rail pressure sensor fault

Hey, I'm having a weird issue with my 2015 Peugeot 308 diesel. The check engine light keeps popping on, and the engine occasionally stalls when idling. I've also noticed a definite drop in engine power. I scanned it and it's showing a fault with the rail pressure sensor signal. I'm thinking the sensor itself is probably defective. Has anyone else experienced something similar?

Summary of the thread

A 2015 Peugeot 308 diesel is experiencing issues with the check engine light, engine stalling, and reduced power, linked to a rail pressure sensor fault. The problem is suspected to be a defective rail pressure sensor, similar to an issue experienced with a Volvo V60. The suggested solution is to replace the faulty sensor, which resolved the problem after professional diagnosis and repair.

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4 comment(s)

lindafischer5

Good day! I am sorry to hear you are experiencing these issues. While I am not intimately familiar with the Peugeot 308, I encountered a remarkably similar predicament with my previous vehicle, a 2012 Volvo V60. The symptoms you describe mirror my own experience with a faulty fuel pressure sensor. The check engine light, the engine stalling, and the power reduction all point to a fuel delivery problem.

benjaminhofmann74 (community.author)

That's interesting! When you say similar predicament, was it definitely the pressure sensor that fixed it for your Volvo? And did you experience any other weird symptoms?

lindafischer5

Indeed, after a thorough diagnostic procedure, it was determined that the fuel pressure sensor was the culprit. Replacing the sensor rectified the aforementioned issues. While the Volvo V60 and the Peugeot 308 are distinct vehicles, the symptoms are congruent. I must strongly advise you to seek professional consultation and allow a qualified technician to perform a comprehensive examination of your Peugeot. It is my professional opinion that this is an area requiring the expertize and technical skills of a mechanic.

benjaminhofmann74 (community.author)

Thanks for the insight! I appreciate you sharing your experience. I took it to my local shop and, yep, faulty rail pressure sensor. New sensor fitted and all seems good now. Cost me about 240€ all in.

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PEUGEOT

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308