Just found this PDF on the Euro 6 THP engine. its worth a look at, though it is in french. I've added the 2nd link from Google Translate.
http://citrotemp.cricou.net/EP/MOTEU...URBO EURO6.pdf
https://translate.google.co.uk/trans...df&prev=search
http://citrotemp.cricou.net/EP/MOTEU...URBO EURO6.pdf
https://translate.google.co.uk/trans...df&prev=search
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