Ok here goes....
I have a Peugeot 206 CC Allure that has just had the 2nd sensor replaced 2 days ago.
Anti Pollution Sensor Warning Light & Management Light have now both come back on again :/
This problem has been on going for about a year now and Im ready to get rid the car or blow it up!!
I've tried everything that this forum has suggested and i just don't know what else to do to get rid of the problem.
Fed up with paying money out for the problem for it to keep rearing up again and again.

Thank you

Sue

suze1414, December 2016

i had same prob on 2002 206cc i fixed it myself its been fixed for over a year clean throttle body change maf or map sensor £10 on ebay clean cat converter recalibrate throttle body and prob fixed for good

kevin d, January 2017

It is sometimes very frustrating with modern motors which develop faults and can be difficult to repair. I trust you had the fault codes read and someone decided to renew the sensor in the exhaust as the code related to that sensor itself. I am sure you have tried a lot of things and it can get very expensive and you get no further forward. There is no point guessing but I would start by getting the fault code, try googling it,try accessing a proper Peugeot forum and asking the right people, it may be there is nothing wrong with the sensor and your motor has developed a slight misfire, it could be a wiring problem up to your ECU, these are things that would need to be looked at but it needs someone who knows what they are doing, it is easy for someone to say change this and that, it`s not their money they are guessing with. Good luck.

cdc, December 2016