It won't plug and play because I am using the original wiring harness for a CX that uses a one wire O2 sensor. The engine was swapped to a JDM D15B and the ECU was swapped to a P28.
Really! I thought all OBD1 cars came with 4 wire 02 sensors. I've done a few swaps and never ran into this problem of a single wire 02 on a OBD1 car? Strange. Well your going to have to find out from the ecu pin out where the other 3 wires are from.
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