[fasteract7]

Thanks...I took the O2 upper connector off its metal mounting tab to disconnect so didn't get involved with the other nearby connectors. Have though looked at them and they seem well plugged in. Have already made the ground connections on the intake manifold and the one on the firewall "happy". Had hoped the tranny fluid being "elevated" may have caused some SNAFU but 3 days of test driving haven't changed much except for the this new "buzzing sound with temp/tach/speedo bizarre behavior" now present.

Thanks for the ideas...keep 'em coming..