I have a 92 accord (auto) 155,000 miles on it and when I do a
diagnostics test on it I am get an error 12 which is an EGR Error. I
need someone to dump all the info about "EGR problems" they know on
me. I need to understand what they are and how I clean them out.
Could an acutal hole in the muffler be the problem? I have heard that
there are EGR Ports. Where do I find those?

Thanks
Adam