AFR wiring

[ababaz]

Hello everyone
I have an ax XSI 1.6 cata
After some modifications to the engine I would install an air fuel ratio gauge to know the engine behavior.

I do not intend to pay 200euros so I took a narrowband gauge to have an overview


Thing is... i adapted the o2 plug to the engine o2 plug.

If someone can give me information about the 4 wires that comes from the engine lom and the 4 that comes from the o2 sensor so i can fix it, id apreciate.
Here my wires from the engine loom

http://image.noelshack.com/minis/2015/15/1428784757-20150411-162631.png (http://www.noelshack.com/2015-15-1428784757-20150411-162631.jpg)

example the red is conencted to the grey one etc...

Thanks you

[axsaxoman]

narrow band lambda totally usless to give air/fuel ratio --only reads beteen about 12,2-15,6 and thats using a 1 volt scale --not 0-5v like a wide band --0.5 is lambda 1 on narrow band unit --wide band probe will have five wires as well+needs a control unit
wasting your time must be a w/band probe to use as an accurate fuel value

[Nimix]

Try to Google narrowband air fuel gauge, then watch a video