Originally Posted by 99HondaG
Last week I failed the State of WA emissions exam. I contacted a few shops and was told by a couple of them that it would cost about $300 to repair (seems high to me). One shop said that I may not have to replace the EGR but most like just need it to be unclogged. Can you tell me how difficult it is to replace the EGR on a 99 Honda Accord 4 Cyl. and if any special tools are required. Also, I'd like to know if it is difficult to attempt unclogging the EGR line. If not, any tips on how to do this (a diagram would be appreciated)?
I highly doubt you need to replace the EGR valve itself. Do a search in addition to what jobrien explained. Unless you have no tools or are completely mechanically incapable, it's a pretty easy job to do yourself provided you're patient with it.