Quote Originally Posted by mattferguson14 View Post
I want to know what the main cause of the EGR CEL code is?
Remember too that if you have a copy of the shop manual, you can use cntl-F (find) to locate info on any of the OBD II codes you read. I'm just sayin. I just learnt that little trick today (didn't remember that the manual had all that info detailed). Just put "P0405" into the search box (or whatever code you are looking for).