I trying to figure out what the relay on the left is and that the heck the thing with the vacuum line is, it has wiring on it, and i want to know if it is needed

 

unplug it and find out!

 

what type of car is this ?

 

the vacum thing looks like part of the 700r4 lockup kit i had in my s-10. when hooked up right. would only allow lockup with 4th gear and part throttle.

 

this is my 1984 trans am, and A, unplugging it may not do anything, and b, it is not the lock-up, i have a 4l60e

 

Given the colors of the wires, I'm wondering if the relay is the relay from the fuel pump - but 1984 might not had an in-tank electrical pump - I'm not that familiar with the older models. The vacuum switch might have ben TC lockup BEFORE you swapped to the 4L60e - I can't think of anything else that would have a vacuum switch on it like that.

 

i figured out that the one with the vacuum only had 1 wire left hooked up, so i decided it couldnt possibly be too important... the relay was for the radiator fan....
but what the F is this?? i was hooked up to the vacuum line that i just removed, its right above the master cylinder and brake booster

 

That vac line looks like the one that goes down to by where my washer fluid reservoir is. I think it went all the way around the back of the firewall over to a t that t's off to intake and the mass air doohicky. Yes, that's right. I said doohicky.

 

found two electronic on the interior... what are these, under the passenger side kick panel, near the old ecm, anyone know what they are??
the first:
and the second.. is cirlced, a relay maybe??

 

In the first few pics, its hard to tell what a relay does with little info on the car

Since the swap is already in there, it makes things more difficult to deduce. Get a multimeter and trace the circuits

The thing over the booster looks like a vacuum reserve

The box thing, trace the wires and find out

The silver thing circled in red is the rear defroster resistor thingy. You need it for a functional rear defroster