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Plx devices wideband (narrowband output)

Posted: Wed Jan 06, 2016 7:46 am
by iselfdevi
Do the gods of hondata still recommend plx devices widebands? I would like to hook up the narrowband output but not sure if it's simulated or an actual reading.
I called plx asking about it and they said that it's not simulated and that it's an actual reading even though their website says it's simulated.

If I use the NB output, will it interfere with my flashpro tune?

Re: Plx devices wideband (narrowband output)

Posted: Wed Jan 06, 2016 10:25 am
by Spunkster
Yes we still recommend the PLX devices widebands. There is no reason to use the narrow band output with a FlashPro. You would only want to use the wideband output from the wideband.

Re: Plx devices wideband (narrowband output)

Posted: Wed Jan 06, 2016 10:26 am
by Hondata
The narrowband output simulates the output of a narrowband o2 sensor (yes, it is simulated). It cannot be used on an ECU which uses a wideband o2 sensor, so you can't use the narrowband output in any case. The wideband output can be used for datalogging and display, but for closed loop the ECU will still need the stock o2 sensor.

Re: Plx devices wideband (narrowband output)

Posted: Wed Jan 06, 2016 1:55 pm
by iselfdevi
I am going to have to enable my 2nd o2 sensor due to... Well you know why. So I need to run that narrowband output wire to the ecu, or just run it to the o2 sensor itself to keep the ecu happy. Catch my drift?

Is the secondary o2 a narrow or wideband on a 2012 tsx.

Re: Plx devices wideband (narrowband output)

Posted: Wed Jan 06, 2016 4:22 pm
by Hondata
Secondary o2 sensors are narrowband, but the ECU looks for a difference between the primary and secondary sensors to determine if the cat is working ok. If they read the same thing the ECU will generate an error.

Re: Plx devices wideband (narrowband output)

Posted: Wed Mar 15, 2017 7:49 am
by bian.yy
Hondata wrote:The narrowband output simulates the output of a narrowband o2 sensor (yes, it is simulated). It cannot be used on an ECU which uses a wideband o2 sensor, so you can't use the narrowband output in any case. The wideband output can be used for datalogging and display, but for closed loop the ECU will still need the stock o2 sensor.
Can I install plx sensor to primary sensor bung as I do not want to weld a new bung.
Can I wire 0-1v simulated narrowband voltage to primary o2 ecu pin?
Can I trick the stock sensor heater?
Can I use wideband signal for closed loop, if yes I dont even ask above questions?if not why there is setting in closed loop to select a pin name, here I use b22 of tsx ecu.

Re: Plx devices wideband (narrowband output)

Posted: Wed Mar 15, 2017 9:12 am
by Hondata
No, the stock o2 sensor is not voltage based and you will damage the ECU feeding it a voltage signal.

The stock o2 sensor will give a lambda reading. In your last datalog it shows it is working.