Volvo D5 fuel pressure too high ECM 2501 2502

[uqj83l]

Hi
Just a post to help anyone who has the above codes appear with an engine management light or limp mode. ECM 2501 ECM 2502
Happened to me last week...
Scanned the codes in Vida. Did a fault trace in Vida. Rail presssure was fine, and so was the pump on activation. Made me think either air in the system or issues with fuel filter. Did a leak down test with clear tube on the return line of the injectors. No bubbles. Could only then be the filter. Took off the casing to find this....






Issued fixed with a new filter. I can’t believe how dirty the old one was and it was only changed 30k ago. I hope this helps anyone with the same issue. Sorry for the sideways images.