Saxo engine stalls at idle fuel pressure issue

My 2002 Citroen Saxo with a gasoline engine has 90463 km. The check engine light is on, the engine stalls at idle, and engine power is reduced. I suspect a defective fuel pressure regulator, potentially triggered by an error entry after changing the fuel filter. Any thoughts?

4 comment(s)

I had similar symptoms with my Saxo: rough idle, loss of power. Have you checked the fuel rail pressure? Could also be related to the fuel pump itself, but the regulator is a prime suspect.

Fuel rail pressure seems consistent, though possibly a bit low. I will inspect the fuel pump, but what was your experience with the fuel regulator itself? Did you observe any specific behavior?

In my case, the regulator was indeed faulty. The pressure was erratic. Given your symptoms and the recent fuel filter change, it’s likely the culprit. You can try and solve it yourself, but I ended up having the regulator replaced at a workshop. Best of luck!

Thanks for the insight. Replacing the fuel pressure regulator resolved the issue. The cost was 45€. Fuel system is now nominal.

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