I had to pull my motor recently and put it back in and I have this one wire coneter left over behind the motor on the passenger side I have no clue where its goes this picture is going through the intake I can reach it but it isnt long enough to go atop the motor so it has to go behind it somewhere, thanks for your help

 

I'm also lean on the passenger side not sure if that has something to do with it

 

If I could read minds , I don't know if that would be good or bad.

Sooooo, I need some help,

Where does the other end of that wire go ?
What color is it ? Does it have a terminal on the loose end and if so what kind ?
Can't tell much from the pix.

Please explain a little more what lean on the passenger side means EXACTLY..
Does it mean you have access to a scan tool ? If so what are some of the readings ?
fuel trim, oxygen sensor voltages- both oxygen sensors
Believe you got the engine running to know ,,,,lean ?

 

Check my signature below.

 

2000, F150 xlt, 4.6, 2wd, manual

It's coming off the main harness around the back passenger area, yeah i got a code for lean bank and it feals a little luggish

 

Find below with a "6" on the 8th character of your VIN. If you have VIN W let me know I will resubmit all.







If you need further diagrams or a particular connector give me the diagram or connector number.
Check C103 (Knock Sensor) first, remove intake manifold to get to it so the wire to the connector shouldn't be too short. Check Intake_Manifold-Removal.pdf below if needed.
Again, everything I attached here are for VIN 6, Romeo engine.

 

Are you sure the oxygen sensor for that bank is connected ? Plug looks familiar !

 

I know its not the 02 sensor I've got all 4 plugged in and its reading to lean on bank 2, and I honestly am starting to lean twords knock sensor cause I dont remember seeing it when I had the manifold off

 

I can't say for sure if a disconnected knock sensor will produce a lean reading in only one bank..

There is something else going on.

 

As far as the shape of the connector and its location from the pics you provided, I can say 95% it's the knock sensor you have it unplugged.
Instructions on how to get to it and plug it back in already provided 40 days ago, I thought you already done it.
Running lean or rich is another topic, first thing you just have to plug the connector back in to your knock sensor.