Do know the order of 3 injectors for refitting

[RR76]

All injectors were taken out, I know where one of them was as the copper washer was still in the port. How big a problem will this be.

I'm in looking at recoding the ECU?
Peugeot 1.6hdi

[Mikey G]

As you know the injectors will be coded to each cylinder, this is a calibration code so each cyclinder gets the correct mount of fuel at the right time. Mixing these up will cause running issues. I know as a local friend has this issue with his DV6 Peugeot van.

If you have access to a decent OBD unit you may be able to read the injector codes on that and match them back up to the cylinders they came from. I can do this with my Autel but it wont allow me to program them back in which is frustrating, especially for my friend who had previous work done on his and someone else royally messed up his injector codes...