2003 TD4 No power

Hi hope someone can point me in the right direction (not to a garage!)
2003 2.0D when driving along say 30/40mph and you attempt to accelerate there is nothing there. Foot hard to the floor then nothing. Still travels at the 30/40mph. No warning lights lit on dash. Doesnt feel like air getting in. Guessing its the electronic accelerator? Any suggestions

More than likely it's your low pressure fuel pump under the drivers rear wheel arch, this does not give an error code but you won't be able to exceed 30mph ish. Or your fuel filters blocked, same place. Mike

Thanks, i'll start off there, much appreciated