im missing the 02 sensor connector on my wiring harness for a D15b8. Im getting a code 1 cel low voltage, the car has a low idle and loss of power when warm as well. Looking at the wiring for the 02 sensor the previous owner seems to have wired in his own 02 sensor which goes straight into the firewall and to the ecu. Its then spliced with another wire which I assume is the original 02 sensor wire at the ecu which is probably what's causing the low voltage. My question is do I need a entirely new wiring harness or is there another way I can fix there splice to make the voltage correct. Theres also some weird open plug where I would assume the 02 sensor connector would be but its not for the 02 sensor any ideas as to what that could be as well?
Sensitive content, not recommended for those under 18 Show Content