I have a 93 22re PU that is tripping a lean code. When I check the O2 sensor output at the diagnostic port it reads 6.65 volts constant. I checked the same wires (VF1 and E1) coming out of the computer with the same reading. However, when I check the OX1 and E1 wires going into the computer I get a reading of .5 mV constant. I have replaced the O2 sensor once with no change in the reading. Shouldn?t the reading going into the computer from the O2 be the same as the reading going from the computer to the diagnostic port?

ccannon