S2000 K Swap - VTEC Academy Sounds kind of Zen doesn't it. The wiring is actually the hardest part of this engine swap. The RSX harness gets modified to work with the S2000 body harness and the one ECU plug that is connected to the body harness needs to be modified to work with the Hondata K-Pro ECU. HOME | cjswiring But anyhow I started wiring up my own engine harness for my 90 crx dx (mpfi converted) when it became clear I'm never going to find a clean harness for my car. So I set out to make my own. And from my build page I was confronted with others who wanted the same. And 6 yrs later here we are. S2000 F20C wiring - LocostBuilders S2000 F20C wiring hi all ive bought an s2000 engine and gearbox to go in a kitcar. i did a lot of searching around for info before i started and got ecu pinouts etc but i have one plug that i cant find any info on (the big light blue one in the picture) also im missing a plug from the ecu (plug A), would these both be on the interior loom for Wiring Harness Conversions for Honda & Acura Engine Swaps Note: Standard harness does not include VTEC wiring so if you are going to be wiring in VTEC your self or not using a VTEC motor select standard harness conversion. If you are running a VTEC engine & would like for us to add a VTEC sub-harness for you that can be done at an additional cost by selecting swap type below. F-Series Swaps Just Got A Whole Lot Easier - Honda Tuning Check out the InlinePRO F-Series Swap kit to make your engine swap a whole lot easier. Install an OEM S2000 engine harness from the same year as the engine being used. Plug the engine harness into an aftermarket ECU. 6. Lastly, connect six to eight wires onto the chassis.