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problem with depollution system on 407?

can a depollution system once read faulty be fixed
sinead, August 2009
Is the car petrol or diesel?
Have you been using cheap supermarket fuel?
Google depollution system peugeot, you'll get a lot of hits.
There are lots of reasons/solutions for this, eg

http://www.peugeotforums.com/forums/showthread.php?t=347

http://www.peugeotcentral.co.uk/ftopic-2035.html

Lots of info on the various peugeot and 407 forums.

warthog, August 2009
http://www.theaa.com/motoring_advice/fuels-and-environment/diesel-particulate-filters.html

Peccavi, August 2009