HowTo: Logging Wideband AFR via Rear O2 ECU ADC Input (Logging AFR without serial)
#151
Newbie
iTrader: (1)
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.
#152
Newbie
iTrader: (1)
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
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
#153
EvoM Guru
iTrader: (8)
You use the white wire.
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?
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?
#154
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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...
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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