1G o2 sensor wiring help

[Vegas Smith]

My car originally came with the wideband wired directly into the front 02 ecu pin, and I'm trying to install the oem NB to run both o2 sensors. However, I can't exactly find the white o2 signal wire that wires into pin 4 for o2 sensor. What I find are these two shielded junctions. The top junction has a white wire that leads to the o2 sensor but why does it terminate in this manner? How would it ever hook into the o2 sensor input? I'm confused on how to go back to the original setup. I can't determine what wire needs to go to pin4. Thanks for any help

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[Ludachris]

Not sure if this contains what you're looking for, but:
http://www.dsmtuners.com/threads/oxygen-sensor-wiring.244376/

 

[Vegas Smith]

What I don't understand is that the signal and signal ground appear to be connected to each other as pictured. Do you just wire that y-site into the ecu pin 4?

 

[Vegas Smith]

Help, or I'll kill you all (too far?).

 

[1990TSIAWDTALON]

No Soup For You.....said Seinfeld's Soup Nazi !!!!
I haven't been under the dash in a WHILE. So the white O2 wire comes in and doesn't go directly to the ECU?? Anyone been playin around under there???

 

[Vegas Smith]

Well, I looked up the wiring schematic on the FSM and it appeared the ground and signal both connect, then go the ecu. You can see the black and white wires connecting as reference. I just connected those two wires to the ecu pin 4 (o2 sensor) and voila, that fixed it.

 

[Anfurnyy]

I just went to check out my narrowband Input on the ecu as I'm about to wire in my own wideband and found a very similar mess...

You're saying, the two wires in the first junction BOTH plugged into the pin 4?