Hello and thanks for the responses so far, Haven't got any further but i should have stated that theres a new EGR fitted although it was suggested that it may need to programmed into the system not sure myself but was mentioned by friend who owns local Renault Garage He himself wasn't familiar with ...

Very good after to all this is my 1st forum post so plz be gentle Getting a couple of codes coming up at the moment on my 64plate Tekna 1.5dci with no noticeable changes to anything 1, is 00001727 refer to service manual 2,is 000017ED refer to service manual And when checking through OBD its P1491 E...