Unplugged Connectors HELP

[projectX4runner]

I have a 90 4Runner v6 3.0 213k on clock auto tranny 4x4. It runs really rich under heavy acceleration, throws black smoke like a diesel! I have these two wires that are un plugged could anyone maybe tell me what theyre for or where they go? Ive looked all around the engine bay and cant find where they might hook up. heres the pics.
#1
<img src="http://i31.photobucket.com/albums/c365/greeneyez03/364024022_photobucket_34525_.jpg">
#2
Not the TPS harness but that one blue wire coming out of the bigger harness. Should that be grounded??
<img src="http://i31.photobucket.com/albums/c365/greeneyez03/364024022_photobucket_34526_.jpg">

And then is this supposed to be there?? Looks like a check valve maybe.
<img src="http://i31.photobucket.com/albums/c365/greeneyez03/364024022_photobucket_34527_.jpg">

An one last thing is this ok for it to be grounded like this? Or is it missing wires. PO did that.
<img src="http://i31.photobucket.com/albums/c365/greeneyez03/364024022_photobucket_34528_.jpg">

Thanks for looking

 

[projectX4runner]

NOBODY has any idea of where they might go??????????

 

[fourwd1]

What colors (including any stripes) are the wires on the connector in 1st pic? Great shot of the other 2 connectors, but not the one in question.
Don't know about blue wire in 2nd pic, but what is the cut-off pair (yellow and green) for?
4th pic, where is the red wire on the neg terminal go to?

 

[projectX4runner]

The cut off green n yellow wires by the firewall are for the fog lights that used to be hooked up..

On the 4th pic the red wire on the negative terminal goes to a bolt on the side of the engine, looks like the intake manifold.

And as for the 1st pic the wires appear orange maybe yellow with a black line and green with a white line

 

[fourwd1]

OK, that's probably an OK spot for a ground wire, it's way heavier than normal which is always good.

I'll see if I can figure out what the other connector is for, might take a day or so.

 

[projectX4runner]

Thanks I really appreciate it

 

[projectX4runner]

Heres some video I took to show what the problem is

So far Ive replaced the plugs, wires, cap, rotor, Battery cables, MAF, ECM, checked for vac leaks, checked tps (but havent replaced), checked timing, pulled codes and nothing... Since its not throwing a check engine light I have no idea...

<iframe title="YouTube video player" width="560" height="349" src="http://www.youtube.com/embed/jx0afEFrleg" frameborder="0" allowfullscreen></iframe>