i think it may be the fuel pum as now after a constant judder and nearly headbutting the screen a few times the car wont start please and help would be greatly appreciated

 

I've got a funny problem to fluctuating boost problem I've been told that's flue pump prob too , did u have that to start off with ?

 

When my fuel pump went I didnt get the juddering you mention.

However my car would intermitedly decide not to start, run fine for a while and then wouldnt start, no pattern whatsoever

I noticed that when it didnt start you could not here the fuel pump prime, the buzz/whine noise when the ignition is turned on.