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Ok, I've been busy and hadn't gotten back to the O2 til last night. Checked the ecm, its a p07. I pulled the O2, cleaned the deposits off the tip and re-installed. Following the test procedure in my Haynes manual (backprobe the white wire terminal B on the O2 connector for voltage, connect black lead to ground), I get values around 2.4 to like 2.9 while running versus the .4 -.9 its supposed to be. If I'm not screwing it up (checked it several times) is this even a possible voltage that it could be giving?
Higher voltage supposedly tells the ecm its running rich and the ecm leans the mix out to compensate, which would explain the persistent stumbling/skipping.
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