RPB

Hello my 1995 C class is throwing a code P0400, it used to be intermittent but the CEL stays on constantly now.

Can someone provide me with a DIY to replace it or the attached pipe which I hear gets clogged. I have the new part with pipe. Any help would be appreciated! I found a DIY for the later years but it looks like they changed the EGR setup from the '95's.

Thanks!