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86 Bronco 2 O2 sensor wiring


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#1 Zac PA

Zac PA

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Posted 12 May 2016 - 01:21 PM

I have an 86 Bronco 2 that I would like to change the O2 sensor on but... the previous owner cut the stock wiring harness for the sensor and spliced in a something else, maybe a universal type. I don't know which wire corresponds to which. I talked to someone at NTK and they told me which wires are what on the new sensor but I don't know about the wiring on the Bronco 2. I have what appears to be (as best as I can tell) a Black, Yellow and Green wire to the O2 sensor. Any info on this would be great.


86 Bronco 2 2.9L with A4LD (Code T) transmission.

#2 miesk5

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Posted 12 May 2016 - 03:01 PM

Yo Zac,
Welcome!
Here it is, same wiring diagram as by Ford:
http://www.revbase.c...oadPdf?id=26858
Gray/yellow from ignition switch

Dark Green/Purple to ECA (computer, aka EEC Module) Pink 29

Black/Light Green to Ground

More diagrams and Technical Service Bulletins (TSBs) at http://www.revbase.com/BBBMOTOR/Wd

GL!
96 XL 5.0 E4OD, Manual BW 1356, manual hubs. See my partially recovered Bronco site. I need to clean up dead links & add many more. Thanks you Mr, Schwim! http://schwimserver5.com/?index=1128
THANKS to ALL WHO SERVE!

#3 Zac PA

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Posted 12 May 2016 - 05:05 PM

Thanks miesk5. Somehow I overlooked that diagram before, now I got it.


86 Bronco 2 2.9L with A4LD (Code T) transmission.

#4 miesk5

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Posted 13 May 2016 - 07:33 AM

Yo,

YW Zac!
BTW,
What engine and tranny/Xfer case,& major mods such as a Lift, etc. do you have?
96 XL 5.0 E4OD, Manual BW 1356, manual hubs. See my partially recovered Bronco site. I need to clean up dead links & add many more. Thanks you Mr, Schwim! http://schwimserver5.com/?index=1128
THANKS to ALL WHO SERVE!

#5 Zac PA

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Posted 13 May 2016 - 02:20 PM

I have the 2.9L with automatic Trans. No mods, I just bought it recently


86 Bronco 2 2.9L with A4LD (Code T) transmission.

#6 miesk5

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Posted 14 May 2016 - 07:03 AM

Yo,
Ok, I added info that to your profile.
Also, as built transfer case is Borg Warner (BW) 1350 manual or electronic (shift-on-the-fly, aka ESOF) unless you have them 2wd model.
Front 4WD axle is Dana 28 TTB; rear axle is Ford 7.5"; firing order is 1-4-2-5-3-6;
distributor rotation is clockwise;
96 XL 5.0 E4OD, Manual BW 1356, manual hubs. See my partially recovered Bronco site. I need to clean up dead links & add many more. Thanks you Mr, Schwim! http://schwimserver5.com/?index=1128
THANKS to ALL WHO SERVE!



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