Whups. Exdelayed made a logical but incorrect assuption! Bank 2 is the one closest to the rad: they're numbered based on which cylinder is closest to the "front" of the engine. (that is the pass side in our crossways orientation. You're lucky, the upstream O2 sensor is in the maanifold right behind the rad. -a lot easier to replace than the one on bank one!
Good luck.
'95 Mystique LS -leather, power, Duratech, Auto

-the wife has to drive it too!) -'89 Baby Bronc 4x4 V6, -'84 Honda Shadow