ellg19

After having the dreaded flashing glow plug on my 02 mk3 mondeo tdci 130 last month then having one of my injectors reconditioned, 400 miles on and and i have the flashing glow plug again driving home from work on Saturday followed by limp mode followed by the engine cut out but restarting 5 minutes later with no flashing glow plug i drove home. I was advised a terraclean could sought the problem out so i drove to my local garage that offers terraclean service i stayed with the car as the service was carried out. After the terraclean the garage re-entered all the injector codes which are on a sticker on top of the rocker cover. My only concern is when i had one of the injectors re-conditioned it was given a new code which surely wont be the same code that is on the rocker cover with the other injectors codes, the car has ran ok since. What should i do?