Was working on my suspected fuel problems when I ran across a disconnected electrical wire... and thought "Hmmm... what in the **** is that for?" so I took some pics, lets see who can I.D. it for me
It's located on the drivers side and you should be able to get the rest from the pictures.

 

what color wires???

 

pics are kinda drak but I can only think of the oil pressure and water temp sending units.

 

The wire is red...

 

Neither one of those have a connector like that.

 

Someones gotta know, there can't be that many single red wires running on the drivers side of the car that have a connector just like that...

 

Does anything on your car not work?

 

Hmm a whole slew of things... right now the car won't idle properly... the horn doesn't work... too many things to remember on the fly I'll find my text file of things to fix.
Windsheild wiper switch doesn't work properly... all the electrical things I can think of right now.

 

I dunno, it's so dark in there its hard to tell. Try sliding it (kinda sideways-like) onto the oil pressure sending unit (the big bell looking thingey by the oil filter). If it slides on there then it probably goes there.

 

The other thing that is circled in the picture with two circles is the connector it should go on.. I just don't wanna put it on until I know what it does.

 

Not to mention the fact that my cars fuel line is connectly disconnected and I spilled a whole bunch of fuel in that area, I don't want any sparks

 

This is where I fix all my screwups. They do have the same color wire, and it's a YELLOW wire with a RED stripe on it. But I could not get the two to connect... took some more pics too here they are, the hose that the pictures are taken on top of is the heater hose that I replaced.

 

Oh yah theconnector thats on the bottom is the same size as the connector on the top.. so they won't possably go together.

 

It goes to one of the sending units on the oil pan. Some years have 2 sensors, some only have one.

 

Simple..

the one in your hand snaps(slides) onto the disc shaped oil sending unit right under the oil filter.

notic the round object that had a disk/button shaped thing on the back of it, slide that wire onto it.

the other wire, is the water temp sending unit.

this is located just to the the front of the oil sending unit.

you really need to clean that engine BADLY.

go get some foaming engine cleaner, (about 3-4 cans) and get all the parts clean and free of oil.

Check to see if the oil pan has one or two wires coming from it on that side of the car, then make sure the are hooked up.

I know that the one in your hand goes to the oil sending unit.

the other i am 99% positive that it is the water temp wire.

And yes, they both have wires like that.

 

Cleanliness is next to godliness!

 

Yep, I agree with sniper.

The slotted one is the oil pressure sender it should not connect to the other.

It looks to me like the second one is for the oil pressure sender condensor (little black box with a single wire, the body of this 1"x3/4"x1/2" box grounded/bolted to the engine right behind the oil filter near the top of the motor).

 

the one you're holding in the top 3 pictures go on the oil pressure sending unit. Like I said it's the bell looking thingey, it slides on in what is a kinda "sideways" position.

 

In that last pic the one on the left goes to the oil pressure sendig unit, the round brass looking part right above the heater hose ont eh block. IT slides onto the terminal from the side.

The other one more than likely goes to the resistor that gets bolted on with the slave cylinder. IT is a small, 1/2" square black piece that gets placed under the heads of one of the bolts for the slave cylinder adn provides a ground for the oil pressure gauge circuit. Sometimes if your route the lower wire wrong around all that stuf it will no longer reach. Sometimes the black resistor is relocated or missing or broken.