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GSRtegŪ
09-28-2007, 07:16 PM
Ok i did an engine swap into my 93 cx hatch... I swap an OBD2 engine in. Now the question is do I have to do a 4 wire conversion to my one wire o2? Im asking bc I get a engine light and I checked it and it blinked only once, meaning o2... btw im using a p28.

Now here are the intructions on how to do it that I found on the net:

Using a P28 ECU (and should work for most obd1 ecu's with 4-wire controls) Run O2 Sensor signal (white) To D14
Run O2 Sensor signal Ground (green) to D22 (or any good Ground)
Run O2 Sensor Heater Circuit Control (http://honda-tech.com/zerothread?id=682412&page=6#) (black) to A6
Run the other black heater circuit power wire to (A25) or any good switched +12VDC source.

Ok you see that it tells me were to pin in the wires correct, but there are already wire in those slots... do I just splice them in with the one's already in there?

Any help would be good thanks for looking.

dickdragon
10-01-2007, 09:20 AM
shouldn't you be ok reusing your old o2 sensor?

bigdare23
10-01-2007, 09:24 AM
use your old o2