o2 sensor help

[airhead04]

Just bought a narrowband prosport a/f mixture gauge and the instructions are crap. Now I got everything hooked up on it except the wire that hooks to the o2 sensor.

I have a 7mgte and my o2 sensor has 2 black wires and 1 blue wire,

My question is, where does the wire from the gauge hook to which wire?

I know, narrowbands = fail. but Im saving up for an aem wideband or titanmotorsports wideban.

Thanks for the help guys

 

[bozosoku]

Hook up your gauge to the blue wire, black wires are 12V input for the heater.

 

[airhead04]

Sweet, thanks for the help