New Injector seals Doesnt run

Im new to the site but i just thort id ask if anyones had the same problem as me, 3 months ago i replace the fuel pump in my defender 90 td5 for a genuine vdo pump yesterday i replaced the injector seals and injector harness and after i did the job it started up fine and i drove down the road and it started to miss then came to a steady stop and cut out then wouldent restart. Has anyone had this problem or does anyone no the answer ??????

its probably air in the fuel lines, try the purge procedure a couple of times.
If it keeps happening it means the injector seals are'nt sealing properly, and need re doing

I ha e purged it about 7 times. I have used britpart injector seals and not genuine la drover ones could that be the problem

everyone says use lr genuine ones, but surely a copper washer is a copper washer,
the injector seats need to be spotlessly clean