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PLX wideband install help

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Old Jan 14, 2019 | 10:32 AM
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Default PLX wideband install help

Hi,
Does anybody know the type of male plug I need to fit the black and positive wire from the PLX into the ignition port?
Here is a picture I found from another thread.


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Old Jan 14, 2019 | 03:07 PM
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Sumitomo HD 250 female, single position.






HD-250 Connectors


First one.
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Old Jan 14, 2019 | 07:11 PM
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Originally Posted by Kyle
Sumitomo HD 250 female, single position.






HD-250 Connectors


First one.
Thanks !
Noob question: Is there any specific way that the black and red (positive and negative) wire need to be attached to the connector?
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Old Jan 14, 2019 | 11:57 PM
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Originally Posted by goose_S2000
Thanks !
Noob question: Is there any specific way that the black and red (positive and negative) wire need to be attached to the connector?
Crimp the red wire to the socket terminal and put that in the ignition slot, put a ring terminal on the negative and put that with the other grounds nearby (you can't miss it)
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Old Jan 15, 2019 | 01:34 AM
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You may want to consider mounting a small fuse block under the dash for "E - Ignition On" and/or "D - Constant" future power sources that is fed from E and/or D on the under dash fuse block. When I installed my PLX WB, I later found that I needed stuff for other gauges and supplies. I started out with a 3 - fuse block and later had to go to a 5 - fuse block (heated seat, heated clothing outlet, etc).



Last edited by hecash; Jan 15, 2019 at 01:38 AM.
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Old Jan 15, 2019 | 08:10 AM
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Originally Posted by hecash
You may want to consider mounting a small fuse block under the dash for "E - Ignition On" and/or "D - Constant" future power sources that is fed from E and/or D on the under dash fuse block. When I installed my PLX WB, I later found that I needed stuff for other gauges and supplies. I started out with a 3 - fuse block and later had to go to a 5 - fuse block (heated seat, heated clothing outlet, etc).


Yeah, I will eventually do that.
For now, I just got the wideband and the IOS app with no gauges yet since PLX is coming with a multi gauge connector soon.
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Old Jan 15, 2019 | 10:35 AM
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I will be installing a wideband soon too and have another question regarding the install: I will be using the simulated narrowband output feature to replace the stock O2 sensor. Most instructions say just to wire the power and ground to 'a switched power source' and a 'chassis ground'. However I have heard from several people it is better to wire the wideband to the ECU's power and ground wires, to avoid voltage offsets between the ECU and wideband controller which could mess up the narrowband output signal. Any insight on this? Who is right?

(sorry for the thread jack, I think it can be useful to have the information grouped here)
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Old Jan 15, 2019 | 12:54 PM
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Found this helpful
https://www.s2ki.com/forums/uk-irela.../#post23583038
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Old Jan 15, 2019 | 09:04 PM
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Originally Posted by noodels
Yes, That was the only link I founded regarding how to install the wideband.
I'm also planning on replacing the factory o2 sensor since I just got the new J'S racing headers.


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Old Jan 15, 2019 | 09:08 PM
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Originally Posted by Scigheras
I will be installing a wideband soon too and have another question regarding the install: I will be using the simulated narrowband output feature to replace the stock O2 sensor. Most instructions say just to wire the power and ground to 'a switched power source' and a 'chassis ground'. However I have heard from several people it is better to wire the wideband to the ECU's power and ground wires, to avoid voltage offsets between the ECU and wideband controller which could mess up the narrowband output signal. Any insight on this? Who is right?

(sorry for the thread jack, I think it can be useful to have the information grouped here)
I'm planning on doing the same install, but I haven't heard anything regarding connecting the wideband power to the ECU power. Event the link above does it to the 12v ignition supply in the fuseboard.
It would be great if anybody has more info on that matter.

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