Hi ! Problem : I have problem with a damaged BSI (com to dashboard) so I have changed it with a new(used) BSI unit (now I have immobilizer problem against ECU, won't start) Question : What matched components do I need to replace for normal function of the car ? I know that I needs matched BSI - ECU - KEY, but do I have to replace the PSA calculateur and ABS unit ? http://citroenc3owners.com/images/smilies/icon_question.gif I would be grateful for an answer http://citroenc3owners.com/images/smilies/icon_cool.gif Kind reg. Rune S. - Norway