Narrowband or wideband o2?

**SilverGT** · 08-23-2009

Okay so I am lightly modding my GTP. Not going to do anything crazy with it. I know that most narrowband gauges have a tendency to jump back and forth and are next to useless. I have heard good things about the summit racing a/f gauge. I just want something to monitor my AF ratio so I know that I am not running lean and something easy to install. I wont be tuning it any time soon since money will be tight when Im going to school so I will be buying a tuned PCM.

So I am asking, Is a narrowband AF gauge going to be sufficient to monitor my AF ratio? Or should I just go with a wideband?

I will also be running an Aeroforce gauge to monitor KR.

Mods:
TDC FWI
MSD Wires
TR55 Copper plugs
ZZP 2.5" bolt in offroad downpipe
Plog, cross over pipe and tuned PCM (Coming soon)
Maybe a 3.4 pulley (next year)

**Liquifire** · 08-23-2009

I would go with the wideband....especially if you are going to the 3.4 setup you will need a tune.

**chrisb** · 08-23-2009

narrowband sensors are only accurate when close to stoichiometric, they can only tell you when you passed the target afr not where you are at the present time. Once you go wot you will be out of the narrowbands range making it pointless to monitor afr unless you are close to stoichiometric (14.7 afr). Now a wideband can monitor anything from 8:1 to 20:1 afr and will tell you where you are at the present time.