Hi folks,
    After asking way to many questions about O2 sensor gremlins for the 2.1,
I finally have some info to contribute myself.
    Developed some stalling problems- hot, cold, didn't matter. Just
happened sometimes. Today driving in the rain it got intolerable/undrivable.
After staring through the windsheild for a while, I reverted to my old
mischief: unplug the O2 sensor, of course. Restarted, the idle stabilized
and I made it the five minutes home.
    I pulled out my trouble shooting printouts from the list archives, along
with threads I'd saved over the past year and went to work.
    To shorten the story: I was getting up to 5 volts leaking or inducting
across from the O2 sensor heating circuit, effectively blowing the ECU's
mind (and hopefully not it's hardware). Just back now from a twenty minute
test drive, with the heater element disconnected, and there's better power
and performance than in weeks.
    I'll inspect the wiring by the cat when it stops raining, in the
meantime I'll gladly run with less than efficient sensor.
    I just wanted to express my gratitude for the list in general, and
everyone who contributes and maintains it. I wouldn't have been able to even
approach this fix without you.
Have a good night,
Matt Sutton
88GL