Injector coding woes

[Headnoodle]

Hi, I had an injector replaced at the garage last week but he said he couldn’t code it and was probably due to the rain internal blowers not turning off. I have replaced the resistor pack on the blower which fixed that problem and as I have diagbox thought I would code it myself. It was injector 1 and that was originally faulty and as I had the old injector to hand I could read the old code to make sure I was changing the right one. However whenever i tried to change it I got an error Impossible to program. Am I doing something wrong and does anyone know how to fix it? Oh I am using diagbox 7.63 and it is a c4 grande Picasso 2016 I think

[Steve Walsh]

A couple of pointers.
Cyl number one is flywheel end on PSA stuff
Most injector codes are between 16 and 20 digits long, most I have done have been 20 digits

[Headnoodle]

Yeah I noticed that, mine are definitely 6 digits. And o know I changed the right one as the old code was for the one I took out

[Steve Walsh]

The QR Code will usually be the correct number

[malc4]

Last i heard on utube was that if the long number 98...080 is the same, they don't need recoding as the ecu will learn. Can anyone confirm?