I have a FJ60, and I can't find where the connector is for the oxygen sensor is, so I may test it. I realize that (I guess) it's not entirely important with newer catalytic converters, as it's just there to protect it from excess temperature, but I was just trying to work through the emissions manual, and there it is. So where is it? It looks like it should show up somewhere around the center console, but I suppose it plugs into something under the hood.