howdy, I finally got rid of my bank too lean code.. I changed the MAF and poof. now I have a EGR Flow Insufficient, I believe that's a P0401. so I did a search on how to clean this stuff and there are no pictures that I see.. so uh here are mine.. maybe someone could point me in the right direction as to what to clean??
I know, it's quite dirty.... there was a gutted cat on the car for a while, now that everything is replaced it would see like that is taking it's toll. here are the pics
Pictures 
