A/F Ratio Gauge

[zZsKyZz]

I have an autometer A/F gauge and I hooked it up to one of the wires that goes to the computer for A/F... My only problem is that it is bouncing back and forth because it's only reading from one O2 sensor. Do I need to install another O2 sensor [and how would I go about doing this] into my exhaust? Where would I put it also to get a proper reading? Or can I just wire it a different way?

Thanks.

 

[ProKiller]

i just have mine wired up to the driver's side o2 sensor. it sweeps back and forth but you still get the idea.

 

[Hoytster]

To get a proper reading you would have to buy a wideband O2 sensor, weld an O2 sensor bung onto the exhaust and install the wideband.

 

[WhiteDevil]

It bounces back and forth because that is what the stock narrow band 02 sensors do. They bounce back and forth to keep the air fuel mixture close to correct. A wideband is the only way to be sure.

 

[Irrational]

Ya coming out of a turbo car I can tell u first hand with plenty of tuning experance. Dont worry about the narrow band it really is useless . An egt guage is better then a narrow band. Get a wideband worth ever penny.