A narrow band O2 gauge will only give you a light show. It'* no where near as accurate as a wideband.

Wideband has a purpose. Just not on a mildly modded car.

It takes quite a bit to get yourself into the 'zone' where you have to be concerned with the data in that detail and accuracy.

I'm adding one this season, but I've gone quite far without one up to this point.

Id love to run a wideband, I just cant afford it and I have nothing major done to my beloved bonni. On my turbo corrado i did my tuning based upon my cheapy air fuel gauge and I went 12.9 in the quarter.

You have nowhere near the mods to justify the expense. My advice would be to use your mod budget for more power-adding mods.

Nt to get back on topic, lol, but does anyone know which wire on the 02 sensor to connect to my a/f gauge?

The narrow band is useful, but just as a cross check for WOT only. I use it for comparative purposes. For example, on a normal WOT pass on the bottle, I see one to two orange bars above the green on the A/F gauge (about 0.900 volts on the scan tool.) Changing the jet size up or down by two jet sizes on the fuel side runs the A/F gauge too rich or lean. Three jet sizes is about off the scale. So, for my purposes the gauge is good enough and can be checked with a glance while making the pass. You just have to be in the ballpark first and understand it'* limitations.

It is better than my old method of tuning a nitrous motor...i.e. running it way rich on the fuel jet, seeing how far down the track the motor will pull before getting flooded with gas, then backing down a jet and repeating until the car pulls the entire quarter without flodding the motor.

Btw, anybody else remember the old A/F gauges that were factory options from GM? (think back to the mid 70'*...GM was putting "Fuel Economy" gauges in the dash...it was just an analog A/F gauge marked for fuel usage.) If ya want a really cheap A/F gauge for your car, dig one of those out of, say a 1976 Grand Prix or Monte Carlo. Or, just get a junk voltmeter and remark the scale.

I thought those were vacuum gauges?

I have a narrow band a/f gauge from my vw and one from my saab, I was just wondering which is the correct wire to hook it up to off the 02