92 accord lx 4 cyl ac/at, 4 door no mods, 297,000 one owner miles (mine).
got some helpful advice here a month or so ago to clean out my egr due to my car surging/stumbling at 1500-2000 rpms.
i pulled all the 6 brass plugs w/o a problem.
all 4 rear ports were pretty plugged, so i cleaned them out with a wire and pick to loosen the carbon. even pushed the wire down through the 4 rear ports at the bottom to clean that small 1/8" hole.
cleaned the front two ports, and ran a plastic zip strip through the rear ports, down through one and up through the next.
vacuumed all the carbon up, installed the newsteel plugs (look like pressed steel, mini coffee cups - not solid like the original brass "dot"plugs).
Anyway, car still surges a little, still stumbles a little. should I have sprayed berrymans b12 carb cleaner in the ports? i think i saw this on a post. also, should I run some seafoam into the pcv valve hose and let it suck some up, putting the rest in the tank?
if so I can easily pull them and reclean them - was pretty easy.
car has new fuel filter, air filter, plugs/wires.
just want to make sure I did it right, willing to redo.
pcv valve seems to be good, rattles when I shake it.

 

Sounds like you cleaned em out good. Look elsewhere for your running problem.