I'm in the process of swapping a D15Z1 into an '89 Civic DX and I've searched and searched this site and Google but can't seem to find a picture of the wiring going to a VX 5 wire O2 sensor.
I've got diagrams but since I'm working with an aftermarket sensor and aftermarket connector with 5 black wires I can't seem to figure out which wire goes where. If someone could give me a clue as to which wire position on the plug goes to which ECM pin I would greatly appreciate it.
My friend, loserkidwac (Matt), on this forum did this swap and wiring in his del sol. He might be able to give you some sound advice. I'm fairly sure he downloaded the Honda Civic Shop manual for the VX for detailed wiring and pin info. If you didn't find that yet, search, and download it.
On the never-ending quest for better gas mileage...