Rough running

My 2003 TD5 110 stalled on me at traffic lights and initially wouldn't restart. When I did manage to get it started it coughed out black smoke and ran very rough eventually stalling once again.

It will now start and idle fine but returns to extremely rough running under any amount of load.

Any ideas?

Have you checked for oil in the injector loom very easy to check n cheep to replace , if you have oil ther check ecu connector too

Best doing a search theres loads of good threads in td5 running faults

Check your air filter as well, it may be choked up and not letting enough air through. Easy things first.