with the above error codes accompanied with the EML any ideas what to try.

i have had a new ECU, EGR valve cleaned and a new map sensor. reset the error codes and to no avail.

any idead what to try next and how much it will cost?

also i want to check the connecting pipes from and to the EGR valve but i am not too sure where this is?

also where is the boost pipe or any other pipes i should check for splits/ ones that have collapsed?

any help is much appreciated

thanks