I’m putting a B 20 b4 into my 95 Civic LX five speed. My friend said I will be able to use the original D series wiring harness on my B series motor that I picked up. I took a picture of his distributor plugs and they match and he has a GSR motor and his 94 Civic he said there’s no need to order a wiring harness. I can use my original wiring harness to hook up the B 20 he also said I can use the injectors on my motor and injector wires. He said everything is plugged and play pretty much. I’m also running a PO six ECU he said once I get everything tuned everything will run fine.

 

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