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View Full Version : Programmable wideband?

GrimJack
04-01-2005, 08:48 PM
Just before Phantom, there was a post about a wideband that had a programmable narrowband output. Anyone remember who made this, and where you could get it? Any details would help.
Idealsupra
04-01-2005, 09:31 PM
i dont know if this is what you are referring too...this one has a lot of programmable options...narrowband 5 volt, display, etc etc....

http://wbo2.com/2a0/default.htm
GrimJack
04-04-2005, 05:07 AM
I'm not sure if that is the one or not, unfortunately I didn't get a chance to read the previous thread, I just skimmed it at the time. :(

This might do the job, though. I'll dig some more.
screaminglemon
04-04-2005, 07:23 AM
are you thinking of the AEM UEGO? it has both wideband and narrowband outputs and i remember someone saying they were using it as their sole O2 sensor, outputing it to the stock ecu.
GrimJack
04-04-2005, 02:01 PM
I don't think so - many widebands have a narrowband output, but what I was looking at was a programmable narrowband output.

The idea was, as our ECU adjusts fuel delivery in closed loop mostly based on input from the O2 sensor, that this would allow us to adjust what the ECU sees and hopefully get the car running leaner while in closed loop.
Idealsupra
04-04-2005, 02:06 PM
I don't think so - many widebands have a narrowband output, but what I was looking at was a programmable narrowband output.

The idea was, as our ECU adjusts fuel delivery in closed loop mostly based on input from the O2 sensor, that this would allow us to adjust what the ECU sees and hopefully get the car running leaner while in closed loop.

exactly...and that one i posted has programmable narrowband 5 volt outputs...

pretty cool stuff...
drjonez
04-04-2005, 02:09 PM
5v != Nb.
5v = Wb.
1v = Nb.
GrimJack
04-04-2005, 02:14 PM
Ideal is confused about his own link. :)

The narrowband output is 1v on this.


A synthesised narrowband (NB) voltage is produced by the onboard microcontroller using a 10 bit A/D converter (10 bit PWM converter with single pole filter), and a 63 word lookup table (with linear interpolation).

The NB output is designed to be compatible with the raw output of a Bosch LSM-11 sensor. Refer to this eXcel spreadsheet (mentioned above) for a graph of NBsim vs AFR.

http://wbo2.com/2a0/afrnb.gif