Question about AEM "simulated narrowband" ouput
#1
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I got an older aem wideband controller that doesn't come with a gauge.
AEM - Wideband UEGO Controller Modules
To add on a gauge, it would cost $200, which is the same price as the newer aem/gauge/controller unit.
However, the controller that I have outputs a "simulated narrowband" 0-1V output that they claim can be inputted into a stock ecu. I attached a table of the output of the simulated narrowband. My question is, can this output drive a basic narrowband gauge?
I just want a gauge as an "oh ****" meter. You guys think this is an OK idea? I have a link ecu, with a display pad, where I can get exact AFR when needed. It's just a little cumbersome to get to.
Volts Lambda AFR
0.48 1.41 20.64
0.49 1.29 18.89
0.51 1.19 17.42
0.52 1.13 16.54
0.54 1.08 15.81
0.55 1.03 15.08
0.57 1.00 14.64
0.58 0.98 14.35
0.59 0.96 14.05
0.61 0.94 13.76
0.62 0.92 13.47
0.64 0.90 13.18
0.65 0.88 12.88
0.67 0.87 12.74
0.68 0.85 12.44
0.70 0.84 12.30
0.71 0.82 12.00
0.72 0.81 11.86
0.74 0.79 11.57
0.75 0.77 11.27
0.77 0.76 11.13
0.78 0.74 10.83
0.80 0.73 10.69
0.81 0.71 10.39
0.83 0.70 10.25
0.84 0.68 9.96
0.86 0.67 9.81
0.87 0.66 9.66
0.88 0.64 9.37
0.90 0.62 9.08
0.91 0.61 8.93
0.93 0.59 8.64
0.94 0.58 8.49
AEM - Wideband UEGO Controller Modules
To add on a gauge, it would cost $200, which is the same price as the newer aem/gauge/controller unit.
However, the controller that I have outputs a "simulated narrowband" 0-1V output that they claim can be inputted into a stock ecu. I attached a table of the output of the simulated narrowband. My question is, can this output drive a basic narrowband gauge?
I just want a gauge as an "oh ****" meter. You guys think this is an OK idea? I have a link ecu, with a display pad, where I can get exact AFR when needed. It's just a little cumbersome to get to.
Volts Lambda AFR
0.48 1.41 20.64
0.49 1.29 18.89
0.51 1.19 17.42
0.52 1.13 16.54
0.54 1.08 15.81
0.55 1.03 15.08
0.57 1.00 14.64
0.58 0.98 14.35
0.59 0.96 14.05
0.61 0.94 13.76
0.62 0.92 13.47
0.64 0.90 13.18
0.65 0.88 12.88
0.67 0.87 12.74
0.68 0.85 12.44
0.70 0.84 12.30
0.71 0.82 12.00
0.72 0.81 11.86
0.74 0.79 11.57
0.75 0.77 11.27
0.77 0.76 11.13
0.78 0.74 10.83
0.80 0.73 10.69
0.81 0.71 10.39
0.83 0.70 10.25
0.84 0.68 9.96
0.86 0.67 9.81
0.87 0.66 9.66
0.88 0.64 9.37
0.90 0.62 9.08
0.91 0.61 8.93
0.93 0.59 8.64
0.94 0.58 8.49
#2
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that doesn't look like a standard narrowband output. it should jump from .3ish volts to .6ish volts on either side of 14.7 roughly.
kinda like this:
![](http://wbo2.com/2a0/afrnbb.gif)
the numbers you posted look somewhat more linearized.
but!
they should work fine with a gauge.
kinda like this:
![](http://wbo2.com/2a0/afrnbb.gif)
the numbers you posted look somewhat more linearized.
but!
they should work fine with a gauge.
#3
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I have the same WBO2 box, purchased it before the gauge type came out. At the time I also had one of those cheap narrow band led gauges and I tried the narrow band output. For some reason the gauge was "blurry". Like multiple leds would be light at one time, and the brightness of the leds was poor. It makes no sense to me, those gauges are just volt meters basically. Anyways, the gauge worked fine tapped onto a narrowband O2 sensor, but not so fine on the wbo2 narrowband output.
If you have a gauge, rig it up quick and try it. Maybe I had a ground problem somewhere.
If you have a gauge, rig it up quick and try it. Maybe I had a ground problem somewhere.
#5
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From stoich to full lean, it only span 1 led light. And even at 10 AFR, it will still display that it's in the stoich zone.
I have been trying to figure out how to play with the voltages like that. Can you point me to a place where I can learn more about offsetting and scaling voltages?
#8
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With my complete lack of electrical knowledge, will this work? It's a voltage divider circuit with a magical voltage doubler, but do voltage doubler exist?
I searched google for one, but the electrical jargon scared me off.
I searched google for one, but the electrical jargon scared me off.
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