Frustrating huh Bob? Ur car will run (and pretty good compared to what U had before!) with the MAF disconnected -PCM goes to best-guess mode. Could be that running as bad as it did for a few weeks crapped up the O2 sensors. Before U blow Ur cash on new sensors/cats or anything, try putting a can of one of those cleaners like CRC's "guaranteed to pass" thru it, reset the codes and check again, -may be able to clean up the O2 sensors / cats now that everything else is ticking.
