Peugeot Expert check engine light and power loss

Sounds familiar. I had a similar issue with my Expert, also a diesel. Check engine light, rough idle, and definitely noticed a power loss, especially uphill. I'd suspect the fuel volume regulator. If the high pressure pump is defective, it might be the root cause. Have you scanned for any error codes?

Thanks for the quick reply! I did scan it, and it points to a defective fuel volume regulator. You really think the high pressure pump could be the problem? How did you figure it out on your Expert?

Well, the fuel volume regulator rarely fails on its own. Usually it's collateral damage from the high pressure pump failing and sending debris through the fuel system. In my case, the pump was the culprit. I strongly suggest a thorough diagnosis at a workshop. Cost me around 1510€ to get it sorted.

Appreciate the insight! I'll take it to the shop and mention the high pressure pump. Thanks again for sharing your experience!