Making sure I wired my PLX wideband correctly

s300 and SManager software questions & answers
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InTheZone
Posts: 8
Joined: Sun Mar 10, 2013 1:42 pm

Making sure I wired my PLX wideband correctly

Post by InTheZone »

When connecting the wideband output from the PLX module I cut the "ELD" wire going into the ecu. I then connected the wideband output to the eld wire on the ecu side. This leaves the sensor side eld wire disconnected. I read this is how you're supposed to wire it.

and

When connecting the narrowband output from the PLX module I cut the "primary o2 sensor" wire going into the ecu. I then connected the narrowband output to the primary o2 sensor wire on the ecu side. This leaves the sensor side of the o2 sensor disconnected. My wideband sensor goes directly into the plx. I read nothing about leaving the other side disconnected but I figured I didn't need to connect it.

I have a few more things to take care off, just wanted to get some opinions on whether or not I'll be fine when I'm ready to get the car going again instead of having to troubleshoot some more.
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Spunkster
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Joined: Fri Sep 20, 2002 5:06 pm
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Re: Making sure I wired my PLX wideband correctly

Post by Spunkster »

The wirs you cut are no longer connected to anything. YOu do not need to input the narrowband signal as you can now run closed loop from a wideband signal.
InTheZone
Posts: 8
Joined: Sun Mar 10, 2013 1:42 pm

Re: Making sure I wired my PLX wideband correctly

Post by InTheZone »

since I already cut the primary o2 wire and tapped it to the narrowband output is it ok to leave as is or should i remove the plx narrowband output?

thanks
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Spunkster
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Posts: 23878
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: Making sure I wired my PLX wideband correctly

Post by Spunkster »

you can leave it like that if you wish.
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