After snooping around in my engine bay today, I realized that the two skinny brass tubes coming from the egr are open free. I guess somehow the two hoses blew off and I guess that is what is causing my exhaust leak and possibly throwing off my A/F ratio. I read somewhere about removing this egr altogether. Should I try to remove it completely or....? Thanks for your help. If anyone else can help out, please feel free to comment. Thanks.