engine management light

  1. #1
    So some random reason my management light has shown its ugly face.
    any common reasons why this happens?
    put a exhaust system on it couple of days before if that makes any difference.
    HELP
  2. #2
    damaged lambda? or if its a 2 wire system you havent connected the second one, if the light is on the take it to citroen as they can tell you straight away
  3. #3
    cheers dude! its booked in.