C4 Picasso Injector Replacement

[Andreiva]

Hi,
I was driving my C4P when all of a sudden the car went into Limp Mode, engine light came on, followed shortly by the ESP deactivating and the fact that the car started vibrating a lot. After I found a parking space I checked the errors with both a cheapo bluetooth odb2 reader and diagbox and both reported P0265 which seems to mean faulty injector no. 2.
My question is if I can only replace that one injector with a brand new one or if I have to replace all 4 since there would a big discrepancy between the wear of the new one and the other ones and I don't know if that could cause issues or premature failure on the other 3 as well.

[Paul-R]

You don't say what year the car is or what engine is fitted but when I changed an injector in our 2015 1.6 BlueHdi I just did the one. The most important thing was to change the code for that injector in the engine ECU.

[Andreiva]

Oops, you are right. It's a 2011 1.6HDI. How long ago have you changed just the 1 injector?

[Paul-R]

Just over three years ago. See here viewtopic.php?t=64451