Originally posted by Civic Type Sev
I realized that the oxygen sensors on obd2 hondas have 4 wires. 2 for the actual oxygen sensing and the other 2 are for the oxygen sensor heater. Since the ELD senses the ''total'' electrical load, it was seing that the circuit for the secondary oxygen sensor heater was open. And that is why it was throwing the code.
Hrm, I wonder how that works when you do a OBD2->OBD1 conversion, is the ECU smart enought to subtract that extra load from the equation to keep the ELD routine happy, must be. hrm.
-PHiZ