can anyone please tell where i start to fix the depollution system failure and complete loss of power, this has happened after having new clutch assembly fitted and a turbo pipe replaced as damaged by repair centre. any answers will be appeciated but afraid to get my arse slapped by pug dealers without an idea of what it may be,,,,,

nadger, March 2009

can depollution system be fixed

sinead, August 2009

I have the same problem and am having it fixed under warranty by local garage who seem to think it s a problem with cat?? I ve heard so many different causes for this fault code

Ryan, July 2009

My 407 HDI also had "depollution system failure" come up, I took it to Peugeot's under warrantee and they did a Turbo Pressure Signal Upgrade, which basically meant, a software upgrade. I am told the "depollution system failure" fault can be caused by several different components. Andy

Andy, April 2009