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PLX Narrowband wideband converter using apexi TT

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civic619

20+ Year Contributor
150
1
Feb 17, 2003
I just noticed that PLX has a converter to allow you to use standard narrowband guages such as the autometer ricer blinking LED gauge acurately. I have the Apexi TT that has a builtin A/F and o2 display. Has anyone used the PLX converter in conjuntion with the APexi TT?

I would like to find out if the Apex TT is worthy of accuracy.
 
what exactly are you trying to achieve?

if you're trying to get the TT to display the wideband info, that's not useful, just get M-300 (it has display)

and if you're trying to display the narrowband output, then it makes sense, just get the narrowband output from M-300 (or other PLX unit) and solder the included resistors inline and wire it up to your ECU or your TT, so they will get the narrowband signal.
 
What I am trying to achieve is to utilize my turbotimers feature of displaying o2 values. At its current state its a narrowband gauge.

Plx sells a module which used in conjunction with their widebands, can convert any narrowband gauge into a linear wideband gauge.

By doing so, I would spend less on a wideband setup and use my tt to display wideband data. Also I I can dsmlink to log wideband volatage as well.

I just like the idea of adding another gauge in my car.

The guys at plx already confirmed this will work. Any narrowband gauge can be converted to a true linear gauge with their module....

Also, its not the same as using the narrowband signal off plx setup for those wondering.
 
No, no, don't misunderstand. you CANNOT turn any narrowband gauge into a wideband by any kind of 'module'.

that 'module' by PLX (the converter, we call it) only turns a narrowband gauge into a wideband gauge, if there is a wideband signal (output of M-250 or M-300 controller) fed into the converter.

so the summary is, you CANNOT turn any narrowband gauge into a wideband gauge with just the converter, without the M-series wideband box.
 
i have the m-300 and i have converted the apexi pencil tt to read on the o2 setting what the m-300 is. the m-300 in my mind is bulky and ugly so i asked the guys at plx what is needed and they said to run my apexi o2 signal in conjunction with my plx signal. this gives me a basic read out of what the module is reading bu minus a decimal. i find this to be invaluable because of the pure ugliness of the m-300 module. thanks. any questions pm me.
 
sapki said:
i have the m-300 and i have converted the apexi pencil tt to read on the o2 setting what the m-300 is. the m-300 in my mind is bulky and ugly so i asked the guys at plx what is needed and they said to run my apexi o2 signal in conjunction with my plx signal. this gives me a basic read out of what the module is reading bu minus a decimal. i find this to be invaluable because of the pure ugliness of the m-300 module. thanks. any questions pm me.


Are you using the convertor so the Apex TT is displaying TRUE Linear WIDEBAND data? The converter can be found here: http://www.plxdevices.com/NB_WB_GaugeConv.htm

If you used the narrowband output of the 3oo and connected that to your Apex TT, that isnt exactly what I had in mind. If you did this, it the same thing as any narrowband gauge.... Check out the link and see for yourself.

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SIMPLY think of the converter as a device that turns your 'normal and average' a/f ratio gauge (like autometer, apexi TT, etc) into a display for PLX wideband output.

BUT also know that PLX units output narrowband signal as well, so you can use this to feed into ECU and remove your existing stock (narrowband) sensor.
 
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