Hi everyone I'm new to the forum I have a 99 civic cx hatch 1.6 sohc non vtec automatic that the engine just konked out on me now I have a complete parts car that's a 98 si with a 1.5l with vtec I live in the middle of nowhere and parts for these are hard to get around here just trying to get the car running again as it's my daily I swapped the engine and Trans and engine harness and ecu now I have an extra plug at the ecu I don't know what it controls and I don't want to fry out the ecu I looked back on the 98 but it has an extra plug as well I have 2 Grey plugs but only a spot for one to plug in which I have the engine plugged in but the one running in the cab has no slot on the ecu is there a way I can either repin it or would I have to gutt the cab wiring harness out of the 98 and put it in the 99 I'm just so lost