Peugeot 607 (2000 - ) - 2002 2.2hdi Engine anti-pollution system defective

My 607 2.2 hdi is displaying esp/asr defective followed by engine anti-pollution system defective. We have tried replacing the ECB, Filling the additive, Re-setting the level for the additive and still no joy. The fault will come on 3 to 4 days after having the ecu codes...

aqui