Can someone give me some pointers on how to install a lambda sensor in a non catted car?

The car is a 1990 Sierra Cosworth 4x4 and in order to fit an AFR meter, it obviously requires a lambda sensor.

A lambda boss and plug can be obtained for the car easily enough and welded into the downpipe which the lambda is then installed in, but this is where I get stumped.

How/where are the heater/signal wires connected in order to have the sensor functioning for th ebenefit of the AFR?

Thanks in advance.

 

If you get a 3 wire sensor ( as fitted to Classic Imprezas), then...

1 wire is heater 12v
1 wire is ground
1 wire is 0-1V signal...This is the wire to connect to a narrowband AFR meter

 

Cheers fiestaboy.

Sorry for being a thicko, but where exactly is the best place to wire up the 12v heater wire?

 

To a 12v switched live

 

Oh, is that all?

Cheers matey