5 wire O2 sensor into 4 wire harness???
 

Finally got the correct exhaust manifold and P07 ECU hooked up into my '95 Civic CX with a VTEC-E engine swap, EGR valve fouls the fuel rail so I have to swap it for another. How do I hook up that extra wire from the wide band O2 sensor?, and where do I find the wire? This has probably been covered before, if so just point me to the thread.
It's taken me a year to get all the peripherals hooked up to my VTEC-E, and I can't wait go hypermilling for real!:D

Blatant Bump, Trolling for Truth.

you will not like it
 

EGR valve fouls the fuel rail so I have to swap it for another.

How do I hook up that extra wire from the wide band O2 sensor?,

the EGR valve does not and can not "fouls the fuel rail "
so kindly add great detail to what it is that you are attempting to state .

and

you will need to use a 4 wire 02 sensor that was designed for your system , your ECM and harness can NOT be retrofitted to use

an AFR sensor .

5 wire sensors are NOT 02 sensors they are Air Fuel Ratio Sensors , they do not and can not interchange

As per "fouling the fuel rail" that comes from the mechanic who installed the exhaust manifold and P07 ECU, I'll have to check it myself.

I thought all models of the 92-95 Civics had identical wiring harnesses, therefore the wiring for the VX 5 wire sensor.
I'm sure I can rig up the VTEC-E to run in my CX, "your ECM and harness can NOT be retrofitted to use an AFR sensor"- I really don't want to believe that, I've got the right ECM and as I said I was told that all 92-95 wiring harnesses are the same, just different wires used for different models.
Thanks for your response and I hope you're wrong.

Actually you can wire it in yourself. You just need to find a spare harness to pull the ecu harness wires from. To OP you might want to look into the original honda helms manual to get ecu pinouts

Edit: excuse my ignorance for bumping an old thread, early morning got me.