96 civic cx engine swap to b18 wiring question about harness

IN2deep · Post by **IN2deep** » August 04, 2006

ok i have a 96 cx hatch that im going to put a b18 in ive finally made my mind up on motor choice after going back and forth several times, i was planning on buying a 99-00 civic si harness to make it plug and play- i think i may have to lengthen a wire or two but that should be it, i am looking at swapping in a 97-97 b18c5 or a 94-97 b18c1 i think a GSR is a c1 anyway should i go with the 99-00 civic si harness or this rywire connector for my harness i have on my motor
http://rywire.com/store/9600-civic-dxlx ... 21a1659736

or post a suggestion, i was thinking it was better to go with the SI harness
opinions and thoughts welcomed

Post by **kotomile** » August 04, 2006

If you go with the C1 don't forget the dual length IM wire.

IN2deep · Post by **IN2deep** » August 04, 2006

dual length IM wire? explain a little more please

Post by **kotomile** » August 04, 2006

the GSR has a dual-butterfly intake manifold, so that part won't function with a Si harness.

munster · Post by **munster** » August 04, 2006

If you have a 96 CX a 99-00 SI harness won't work. Different plugs. obd2a vs. obd2b. The plugs at the ecu are different. You'd have to get a jumper harness. Just use your stock harness and add the necessary wires.

96-98 pinout:
http://www.ff-squad.com/tech/wiring/wiring.96-98.jpg

99-01 pinout:
http://www.ff-squad.com/tech/wiring/wiring.99-01.jpg

IN2deep · Post by **IN2deep** » August 05, 2006

so use my harness and get the rywired harness or just wire it myself?
thanks i was about to buy a harness so u guys saved my a$!
thanks

munster · Post by **munster** » August 05, 2006

I would just use your stock harness. Add the necessary wires. no need to buy a whole rywire harness. Just get an obd2 to obd1 jumper harness if you're running an obd1 ecu.