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isabell_werner47

Peugeot 107 rail pressure sensor fault

My 2007 Peugeot 107 diesel is showing a check engine light intermittently at 74939 km, with engine stalls at idle and reduced power. Diagnostics say it's the rail pressure sensor. Anyone seen this? I think the sensor is bad.

4 comment(s)

franziska_becker3

Sorry to hear about your 107. Has the fuel filter been changed recently? A clogged filter can cause similar symptoms by restricting fuel flow and affecting rail pressure.

isabell_werner47 (Author)

The fuel filter was replaced about 10000 km ago. Could a partially blocked filter really cause such erratic sensor behavior, or should I focus on the sensor?

franziska_becker3

A newish filter makes blockage less likely, but it's still possible. Since the code points to the rail pressure sensor, that's plausible. If you don't have diagnostic equipment, get a workshop to confirm before replacing parts.

isabell_werner47 (Author)

I had the sensor replaced at a service center. The issue is resolved. Total cost was 240€, including diagnosis.

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