For those who must (and don't have the right equipment), I found it easier to adjust the air/fuel mixture with the o2 system unplugged. Unplugging the o2 system is also a nice test. The idle seeking on my D pretty much stopped once the o2 system was unplugged. This suggests that the o2 system is trying to compensate for a air/fuel mixture that was still off, even though the engine was now running. With some additional tweaking of the air/fuel mixture, I was able to almost completely eliminate the idle seeking. Power seems down a bit -- I must have had it running a little rich.