06-25-2015, 07:52 AM
I cannot understand how leaving the O2 sensor disconnected would cause it to fail. I am under the impression that the sensor places a certain amount of resistance across it's leads according to conditions in the exhaust flow. Seems to me that the sensor will continue to operate as normal it just will not be read by the ECU. Someone enlighten me if I have this wrong as I have little understanding of these systems.
