srg

Hello,

Please help me to hook up a PLX-M300 wideband on D16z6 Del Sol Si.
I found this picture but it's for B16a and B18.. I don't know if D16z6 should be the same..

nickromeo

im not sure for what ecu that is,

but another way to do it is to use the o2 wires in the engine bay. the ones that connect to the o2 sensor itself.

what i did was i cut the end off an old o2 and connected my wires to that plug and plugged it into my stock harness.

this was with my innovate.

bdavis

Yup thats it.

srg

But I'm not using stock liambda harness anymore..

bdavis

just splice the red wire from PLX into A25, I use A26 for the black wire and then i run the wideband output from plx into d14

mike93eh2

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bdavis &raquo;</TD></TR><TR><TD CLASS="quote">just splice the red wire from PLX into A25, I use A26 for the black wire and then i run the wideband output from plx into d14</TD></TR></TABLE>

why the wideband output into d14... do you mean the narrowband output? or is that where you runn the wideband output for datalogging such as in s300?

bdavis

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh2 &raquo;</TD></TR><TR><TD CLASS="quote">

why the wideband output into d14... do you mean the narrowband output? or is that where you runn the wideband output for datalogging such as in s300?</TD></TR></TABLE>

yes, if you are datalogging hook wideband output up to d14, if not then use narrow band to simulate stock o2

mike93eh2

ok lets say im still using my narrowband sensor and a wideband sensor and datalogging. then i just need to hook up wideband output to d14..

but lets say im not using a narrowband sensor and need to simulate it and datalog then i would hook both the wideband and narrowband outputs of the plx m300 to d14?

bdavis

your computer can only see one or the other, wideband or narrow band

mike93eh2

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bdavis &raquo;</TD></TR><TR><TD CLASS="quote">your computer can only see one or the other, wideband or narrow band</TD></TR></TABLE>

ok so if i want to datalog wideband then i need to keep my narrowband o2 sensor and not use the wideband to replace it?

mike93eh2

anyone?

nickromeo

when datalogging on software with a stock ecu, the wideband voltage replaces the stock narrowband voltage. so instead of the ecu seeing 0-1v it sees 0-5 v. and then the program with the datalogging software ie crome uber or hondata, will catch that signal and convert it into a Wideband reading on the screen.

so just think about the ecu wire as o2 voltage input, not narrowband or wideband input.

thats why u can only have one or the other. thats why closed loop should be disabled when ur using a wideband o2 thru the ecu

mike93eh2

ok lemme make sure this is correct.. so if i want to datalog wideband with my s300 i dont even need to run the narrowband sensor, just the wideband sensor. and then hook the wideband output of it to D14 on the ecu and then disable closed loop and everything is good to go?

abnaasefmb

Lol, I made that diagram a while back with my excellent photoshop skillz. Glad to see it’s helping someone. I have tried running a hot wire directly from the battery and grounding to the chassis because some people said they had more consistent readings that way. I didn’t notice any difference so I left it hooked up the way I first had it. It’s been like that for about 10 months with no problems.

ladysman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh2 &raquo;</TD></TR><TR><TD CLASS="quote">ok lemme make sure this is correct.. so if i want to datalog wideband with my s300 i dont even need to run the narrowband sensor, just the wideband sensor. and then hook the wideband output of it to D14 on the ecu and then disable closed loop and everything is good to go?</TD></TR></TABLE>


You are making this way more complicated than it is.With the S300 and the PLX do the following
1) For reference see this http://www.hondata.com/techplxwiring.html
2) Wire the WIDEBAND output to the ELD of the ECU.
3) Wire the NARROWBAND wire to the O2 input (This is optional as if you don't use closed loop, there is no need for this or, if you are going to keep the stock O2 sensor in the car i.e. you have 2 bungs)
4) Setup the S-Manager software
5) Enjoy

Just post here if you have questions. I have done this a bunch of times.

mike93eh2

eld of the ecu??

ladysman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh2 &raquo;</TD></TR><TR><TD CLASS="quote">eld of the ecu??</TD></TR></TABLE>
Yes, Pin D10 on OBD1

mike93eh2

hmm so some people say to use d14 and youre saying to use d10. wtf no wonder why im so confused.

Blackack26

https://honda-tech.com/zerothread?id=1585145

This might help, I wrote it a couple of months ago.

mike93eh2

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blackack26 &raquo;</TD></TR><TR><TD CLASS="quote">3) Remove stock o2 completely, datalogging.

Now, if you want to datalog a/f using something like hondata, the ECU needs a wideband signal. However, if you are familiar with tuning you will know that when you finish the tune, you would want to leave the car in closed loop and in order for this to work, the signal has to be narrowband. To over come this, you need a way to switch between narrowband input and wideband input. One way to do this is to wire a switch between pin D14, and the white and grey wires from the plx display box. </TD></TR></TABLE>

ok i have a plx m300 and going to be datalogging it with hondata s300 and im going to be keeping the plx in the car all the time. do i still need to wire up a switch?

i dont understand what youre saying there. everyone else said to disable closed loop, wire wb o2 to d14, done.

EDIT: btw, sorry guys im just trying to finish up my huge build and then taking it 2+ hours away to a tuner and cant start it up or check anything until i get it there and want to make sure everything is good to go and done right.

mike93eh2

according to this

http://www.hondata.com/techplxwiring.html

if i want to datalog wb and not use a narrowband sensor i would need to wire it up as follows.

12volt - A25
ground - A26
wideband output - D10
narrowband output - D14

now i do this do i need to still wire in a resistor between the two black wires on the stock o2 harness to to keep the CEL from coming on?

ladysman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh2 &raquo;</TD></TR><TR><TD CLASS="quote">according to this

http://www.hondata.com/techplxwiring.html

if i want to datalog wb and not use a narrowband sensor i would need to wire it up as follows.

12volt - A25
ground - A26
wideband output - D10
narrowband output - D14

now i do this do i need to still wire in a resistor between the two black wires on the stock o2 harness to to keep the CEL from coming on?</TD></TR></TABLE>

I have done lots of testing for power and ground and hondata's instructions (Fusebox and solid chassis ground) are best. Using the ECU per PLX instructions isn't the best......at least not for me. Also, do not use the capacitor for the plX.

If you are keeping the stock O2 sensor (I don't know if you are sorry, I didn't read all of it.) then no you don't need the resistor. If it is removed, you may or may not need one. Even if you get the Code 41 O2 heater error, it does nothing to the ECU as it will function normal.

Finest

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh2 &raquo;</TD></TR><TR><TD CLASS="quote">

ok i have a plx m300 and going to be datalogging it with hondata s300 and im going to be keeping the plx in the car all the time. do i still need to wire up a switch?

i dont understand what youre saying there. everyone else said to disable closed loop, wire wb o2 to d14, done.
</TD></TR></TABLE>

You're fine. The Hondata will convert the WB voltage to NB readings so your ECU doesn't freak out. But you will still be able to datalog the WB readings through Hondata. Disable closed loop and you don't need to wire up the resistors for the heated O2 signal. You're basically running the ECU off your Hondata tune. Your mind is probably asking, "But I still have one wire left? What do I do with it?" Don't worry, you have Hondata so the gray wire doesn't need to be hooked up. I know, it takes a minute to get used to. That magic little blue box does wonders!

ladysman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Finest &raquo;</TD></TR><TR><TD CLASS="quote">

You're fine. The Hondata will convert the WB voltage to NB readings so your ECU doesn't freak out. But you will still be able to datalog the WB readings through Hondata. Disable closed loop and you don't need to wire up the resistors for the heated O2 signal. You're basically running the ECU off your Hondata tune. Your mind is probably asking, "But I still have one wire left? What do I do with it?" Don't worry, you have Hondata so the gray wire doesn't need to be hooked up. I know, it takes a minute to get used to. That magic little blue box does wonders!

</TD></TR></TABLE>

There is no blue box with the S300.

Like I said, if you are not using the stock o2 and plan on never using Closed loop, just make sure the software is setup correctly.

With the S200, the resistor was required to stop the CEL

mike93eh2

so youre saying with the s300 you dont need the resistor for the heater wires?

btw, i dont plan on using the stock narrowband sensor just the wideband. so dont do anything with the grey narrowband output wire? hondata will take care of it?