peugeot 307 1.6 hdi 05 plate . - depolution fault - raysheppard

i have a deplolution fault on my peugeot 307 1.6 hdi .the management light has been coming on now for a few weeks but has just started to go into limp mode .the codes i have are ,p1728 .p0223,p0069 . EOBD P1351 ,P1350,P1352.P0237. but the fault is intermitant .also i get [engine management system fault ] is this part of the same fault .any advise ,thanks ray .