Thanks for all the responses to my question earlier. I went to a
junkyard and got a throttle body to replace the sensor. However, I
can't get the sensor off the junker throttle body,with either a screw
extractor or having dremeled a notch in the screw. I'm not sure I can
get the old one off my current throttle body either without taking the
throttle body off either. So:

- can I just replace the whole throttle body? The junk part only
showed 150K (it was a manual). My car has 263K (auto). This seems like
it would be a lot easier/faster.

- if so, can I reuse the current throttle body gasket, or should I get
a new one? They are available from the dealer.

TIA,
Derek