I'm looking for some help for this specific situation. I converted my 90 hatch to obd1, and I will be running one 02 sensor. I bought a plx m300 a/f meter and it has a o2 sensor. I also have the rywire obd0-obd1 ecu harness adaptor. I need to know what wire(s) on the plx to wire to what wires on the rywire harness.

 

bump for some help. someone must have this same set up