tioklou

Hello and nice to meet you. My car is a citroen xantia 1.6 (xu5jp engine) and i want to remap its ecu. i bought a second ecu from a same car to do the remap and to keep mine if anything goes wrong. but there are some differences between the two. my ecu code numbers are: IAW 8P.13 16240.014 9619467680 the new ecu is: IAW 8P.13 16240.124 9621477380 Is there something i must worry about these numbers differences before i connect it? what is your opinion? My car does not have a keypad immobiliser.

Hii