To make a long story short, my daily Civic wouldn't start, bought a fuel pump, found a shop that installed customer parts, and they installed it and had it running for over an hour, when I got there to pick it up, it primed and cranked, but wouldn't start. The following week they said that they had diagnosed it as a main harness issue, and couldn't find a local part for it.

Now I'm back to square one. Any ideas of where I could find a fairly good/used harness? Ebay has some, but they're roughly used.

Parts I've installed/restored to make it a daily:

New:
Distributor
Motor Mount
Spark Plugs
Plug Wires
Fuel Injectors
Intake System
Battery
Relay
Fuses
Radiator
Radiator fan
Timing Belt/Adjustment

 

in order to install a D15B6 MPFI engine into a DX with DPFI, you need to use the DX engine harness that originally came on the car and make the necessary wiring changes on the engine harness to convert it from DPFI to MPFI - The main DX chassis harness does not need to be modified in any way - i seriously doubt that they ever had it running without making these modifications

attached are the instructions for converting the DX engine harness from DPFI to MPFI: