I have researched all of the O2 threads and posts and they come close to answering my question but not fully.
The car runs rich from day 1. Did a voltage check on O2 and it read 0.23 indicating lean. The meter did not fluctuate but just locked on that reading. Replaced sensor w Bosch unit. Drove it to mechanics shop independent certified MB and it read 0.34 locked. I unplugged the unit and tested the sensor and it started climbing. Plugged it back in, locked at 0.34.(it came up to 0.35 when I shot a mist of ether into the throttle platen, I though it would jump up more than that!) Pulled unit and burned off the black carbon that built up over just 30 miles of driving (gets about 6mpg at this point, I worry about choking my catalytic converter.) Replaced and checked again,0.34, no change in voltage. I am thinking of the green wire being shorted somewhere, or jetronic failure Last night I pulled the plug and cleaned the contacts on jetronic (will check later, raining now) is there anyway of disassembling the jetronic and resoldering? I read about a coolant sensor coming into play, local parts house does not carry it and Iam not sure of its exact location on my car. I love driving this car but traveling with a gas tanker truck is cramping my style!