well i did some checking with my scan gauge and the 02millivolts would be around 800 more or less and get it alittle gas and i get a stumble and it would drop to 50-20 but at WOT its fine with a constant reading does this sould like a the 02 housing 02 senser
Yes it does. You might check all your cable connections to insure they are connected. I had a connection that looked ok, but after checking found that it was not completely connected. my symptoms were similar to yours and that cured it, after replacing several O2 sensors. Good luck.
