lets say i wanted to put a D16z6 into my CRX DX, and possibly even the 92-95 dash!

Could i get the under-dash harness and dash from a 92-95 EX or Si, put it in the CRX, with the harness running all the way into the engine bay. Then just kind of plug in the ECU and engine harness into it? That way, id have a sick *** 92-95 dash conversion, and the D16z6 swap would pretty much be plug and play, no re-wire.

 

No.
the under dash harness is just that, under the dash.
You are talking about the car harness which goes under the carpet behind the dash and into the engine, interior, tail lamps, the whole thing.
That is a huge job, much more troublesome than just rewiring your current harness to work with what you want to swap.

 

i just found this....

id need to convert to MPFI, which is what this shows... but would this wiring setup work for a D16z6, well, id need to add Vtec wires too, but would it work?

 

yeah i tried it one time to make a auto to 5 sp its a pain in the a**