well just thought i'd update. fitted a new fuel pump this morning and was still the same. so thought i'd try giving the plug a clean and pulling tape of the loom to see if there was any oil still in there. and find a proper mess someone whos owened the car before me had messed around with wiring and cut through wires for the injectors so a bit of soldering and now it seems to be sorted

It's shocking to find what other people have done!

yeah it is especially when it comes to wiring. going to give it a good service in the next couple of weeks and give it a check over hopefully dont find anymore suprises