Lambda wiring question

[Bakke]

I'm planning to add a lambda sensor to my car which is non lambda. The goal is to install an A/F gauge and not to controll the ECU or engine.
I got hands on an old 480 lambda sensor but I'm searching for a wiring diagram for the 3 wires attatched to it. Someone who can help me out?
Thanks a lot.
Bakke

[Derek]

if its from a 480 it should have three wires a green one with a single spade and two white ones going to a two pin connector. the two the go to the same plug are for the heated element to heat the tip of the sensor faster and the green wire on its own is the signal out put wire. if your only using it for an AF gauge i think you only have the use the green wire but i read some where that you really need to use a Wide Band lambda sensor but they are really expensive.

[Bakke]

Thanks Derek for your fast response

So if I get it right : green for the signal and the 2 white wires are for the power and ground?
Do the 2 white wires have a polarity or isn't there a differance on whichone I connect to power / ground ?
Any one who can confirm this?

True normally I need a wideband to have a more precise readout, but they are more expensive. The car has been tuned by a professional tuner so I count on their knowledge that the care turnes safe. I only need an A/F as backup in case an injector malfonctiones or something else that put the lambda reading offscale, not really for fine tuning

[Derek]

You really don't need to connect the white wires at all unless you want the heated tip to work. but if you do use them they'r not polarity sensitive ( any white wire can be positive as long as the other is negative ) think that makes sense.