There was a good post in the last couple of months about 02 sensors going bad gradually, not like a lightbulb that works or doesn't.
I'm big on resistor ends, but the idle at warm temp would be rough. Cold startup and idle would appear fine. Look for that thread about the 02 sensor. I recall, Larrybible, Stevebfl, Suginami and other reputable posters.
Last edited by 95E320cab; 05-31-2003 at 10:30 AM.