Just had someone on the phone who said his mate has a TD VW which showed the EXACT same symptoms as mine was with the EML problem.
His was the injectors, so popped out, took the cover off and found this:
We are thinking that isn't normal...oily stuff round the injector. Also seems that the previous owner has changed them at some stage as there are white dots on each of the plugs onto the injectors, and also the screw into the AFM is different, so that must have been changed at some stage as well.
Anyone know how much injectors are from Vauxhall? (cowers in the corner because I bet they aren't cheap)