Willosi1991
New Member
I bought a ls/vtec and I want OBD1, can i just use the OBD1 engine harness or it has to be the whole harness inside and outside? I have a Civic Si 1991. Please someone can tell me.
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use your stock si harness just the engine bay harness, and then just run a few wires for vtec, oh yea and dont forget to buy the obdo to obd1 jumper harness