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HowTo: Logging Wideband AFR via Rear O2 ECU ADC Input (Logging AFR without serial)

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Old Feb 3, 2016 | 11:18 AM
  #151  
kiddsm95's Avatar
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Originally Posted by razorlab
Thanks David but that's already what I had in the post above.

I think the scaling formula is incorrect.

Anybody logging the zeitronix here?
Razor did you get this working for your Zeitronix? I have a ZT2 that I need to get up and running.

2012 USDM GSR: 58010005

Since the ZT2 has a narrowband simulation O2 output (Purple wire), doesn't this mean we don't need to disable the stock O2?

So I'm confused.

Purple wire - Simulated NB output / linear wideband output.
White wire - Wideband analog output.

Do I splice in the purple wire and leave the stock O2 in place, or pull the stock O2 and splice in the white wire?

Last edited by kiddsm95; Feb 3, 2016 at 12:29 PM.
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Old Feb 3, 2016 | 11:32 PM
  #152  
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The goodness starts on post #9. Haven't tried it yet, but if it allows for standalone logging via headphone jack it's worth a try.

I prefer this over messing with the rear O2.

https://www.evolutionm.net/forums/09-ralliart-engine-turbo-drivetrain/541627-tactrix-openport-standalone-logging-0-5v-adc-op2-0-pin-8-a.html
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Old Feb 4, 2016 | 07:57 AM
  #153  
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You use the white wire.

Originally Posted by kiddsm95
Razor did you get this working for your Zeitronix? I have a ZT2 that I need to get up and running.

2012 USDM GSR: 58010005

Since the ZT2 has a narrowband simulation O2 output (Purple wire), doesn't this mean we don't need to disable the stock O2?

So I'm confused.

Purple wire - Simulated NB output / linear wideband output.
White wire - Wideband analog output.

Do I splice in the purple wire and leave the stock O2 in place, or pull the stock O2 and splice in the white wire?
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Old Mar 3, 2016 | 06:09 AM
  #154  
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Originally Posted by razorlab
You use the white wire.
I have the white wire tapped to the yellow but cannot seem to get my formula right. Or maybe it is the scaling that I cannot get, but it seems off, and without being sure of what I am actually logging, I am nervous to rely on the AFR logging information.

Zeitronix zt-3
2008 GSR - 52680022
Using Evoscan 2.9

I am logging address 2380934E
response bytes = 2
eval = 2*(5*x/1023)+9.6
min/max = 9.6/21
scaling factor 10

I am just trying to get my AFR to log so I can get remote tuned. I noticed that Tephra said there were two addresses and he recommends the 1 byte, maybe I am pointing at the incorrect one. I am kind of lost at this point. Sorry to be so dumb to this, but any help would be greatly appreciated. I have been searching and trying for days...
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Old Feb 24, 2017 | 09:35 PM
  #155  
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just what i was looking for thanks
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Old Jul 19, 2017 | 09:03 AM
  #156  
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@xPRimNT Can you update your Photobucket so it will show your images please?
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Old Dec 19, 2018 | 07:59 PM
  #157  
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I searched and searched, anyone know the address Needed for rom 53600010 ?? im dead in the water and cant find out anywhere.
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Old Dec 26, 2018 | 08:09 AM
  #158  
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Post it up, maybe someone can help.
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