Jordan, also make sure you are running the car long enough for it to be in closed loop. I had one of those gauges, and that is exactly what it would do in open loop while the car was warming up. It would pin to the right until closed loop then just bounce left to right once closed loop was achieved, which is normal for a narrow band of such

 

I run the a.e.m e.u.g.o wide band and it works great and cheap. The narrow band will give no data whatsoever as Dwayne and Fred already stated. N/b works good to tell the e.c.u to richen or lean the mixture out but does little beyond that. On a side note my wb02 has the ability too function as both. I once had an iroc that had a afr gauge in it that was tapped into a stock 02 sensor. As stated above did nothing but distract the hell out of ya. I unhooked the gauge and left it there to fill the pod.

 

The Narrow band gauges aren't fast enough to read the voltage sweeps from the sensors and regardless they are not as a typical 5 wire wide band. Truthfully, ALL gauges are a distraction. Even the AEM UEGO which has the same tracing LED and HUGE LED numerical readout.

I datalog with an Innovate Lm-1 I pop inside my console, log each bank and remove it when I am done. I don't see the need to ride around watching A/F ratio if I am not tuning etc.

 

lol why one earth would you want a narrow band gauge? Don't put that garbage in your car, it's literally useless, spring for a AEM wideband on ebay. They're like $175 and are great AFR gauges.


For a boosted car it's essential, and not just for tuning. Too many thing can and DO go wrong. A wideband can tell you more about the engine that just about anything. This and a boost/vac gauge and you have almost all the important information at a glance for the running condition of the engine.

 

I've owned quite a few boosted cars, the only one that I had it on was because the car had an FMU for fuel enrichment and I was always worried that it needed adjustment. The rest I relied on EGT to monitor.

 

Any of you guys use any other Wideband A/F gauges???

summit has a Holley WB A/F gauge for 150...?? or should i go AEM??

 

They all typically use the same Bosch 4.2LSU sensor, which is the real heart of the setup. I've used AEM and Innovate LM-1 and both worked flawlessly.

I'd use the Holley if they offered a warranty similar to other brands.