Curious.. did you unplug the MAF? If so, how did it run

Maybe try swaping o2 sensors, while you are at it leave it unpluged to see if it will light the SES light! Then plug it back in, light should go away.

Did you unplug EGR while engine is running rough at low rpm/load?

Gentlemen,
I did unplug the MAF and it stalled several times. after a restart or two, it
settled to a galloping rough idle much worse than before.
This did set off the Check Engine light.

As before, once off idle and accelerating, no issues at all.
I haven't tried the O2 or EGR wires yet, maybe tomorow when I can see.

Right now my plan is to just ride it out. It gets worse mileage, but I can live with that
untill I've got some income to take it to a shop that has all the correct electronic
test equipment to isolate the issue. --At that point it will probably be some $1 o ring
buried deep inside.

Mike