loose connector behind intake

[devincox]

I am almost finished with my engine/trans install. I was installing the new exhaust last nigh, and when feeling around for the O2 sensor connector on the factory harness, I felt a loose connector. Its right next to the O2 connector but cannot figure out what it goes to.

I know its a long shot to ask here, but thought maybe someone would know what it goes to.

Thanks,
Devin

 

[Bedrck47]

Well to make the long shot a short shot What year expy do you have and also which O2 sensor did you find it next to Passenger or driver side front or rear sensor

 

[devincox]

Sorry, guess that would help.
97 EB 5.4 4WD
passenger side O2 sensor

 

[Bedrck47]

I see if I can get you some info

 

[devincox]

Thank you.

 

[Bedrck47]

OK is it the front sensor or the rear sensor

If you can see the connector and get a picture of it or see how many wires on on the connector that would help

 

[devincox]

Its near the front O2 sensor on the passenger side.
There is not enough room to take a pic.
I can just barely feel it with my hands. It feel round and slightly smaller than the O2 sensor connector

 

[Bedrck47]

on the print look in the area of A-4

 

[Bedrck47]

Maybe for the fuel injector Knock sensor at this point hard to tell

 

[devincox]

It does look like the knock sensor in the diagram, I'll check when i get home to see if thats it.

Thank you