I need help on jumping obd2 to obd1


New Member
Hey guys, I'm making a obd2b to obd1 harness for my Accord. I've been searching and I finally found this chart. I think this is the only chart of it's kind that exists online. Anyways, is the chart 100% correct? Can I wire my harness just as the chart says and it'll work? Also, I've seen photos of Rywire harnesses that have a couple wires coming from the obd1 ecu that are split or "Y'ed" into 2 wires in the car harness. I've seen others that appear to have all single, direct wires between plugs. What's the deal w/that? Thanks -J