What is this plug??
 

I was looking around my 3VZ-E looking for vacuum leaks, missing plugs, etc, anything that could be causing problems. Anyway, I looked down to the right side of my block down near where the oil filter is and I saw this dangling plug that just looks like a wire attached the a cup. Anyone know what it is and where it goes?
https://cimg1.ibsrv.net/gimg/www.yot...e4405c931.jpeg


I pulled it up to see it better. It was dangling down.


https://cimg3.ibsrv.net/gimg/www.yot...ac2c7c965.jpeg

That looks like the oil pressure sending unit plug.

It looks a little like the connector to the oil pressure switch. Do you have a gauge or light?

Clean up the wire and get the color (hard to tell from an iffy picture of a grimy wire). It looks a little like black with yellow stripe, but that should be IG1 (or IGF), and that makes little sense on a connector like that. I show the oil pressure sender as Y-L (yellow, blue stripe).

It's white with a blue stripe. Ahhh. I see. I looked at the plug and it's a slide on plug just like the pressure sending unit has, so I'm pretty sure that's it. I just bought this truck with no knowledge of what had been done, but there's a new oil pressure sending unit in the glove box, so I guess he started, but didn't finish. Thanks!

Do you know where I can check a model number to see if this is the right one? It's a Beck/Arnley KG-1102

Here's a side by side. The threads are the same and the connectors are the size, they're just different sizes.
https://cimg8.ibsrv.net/gimg/www.yot...7124387cd0.jpg

Nope. The sensor is too short and the plug can't reach it. Oh well. I don't even know if the old one is bad.

It looks pretty bad. That's for sure. I would make the wire longer.

You think it's okay that the new one is much shorter than the old one? It won't send wrong pressures or anything? Even to the old sensor, the wire is pretty tight, so I wouldn't mind lengthening the wire regardless.

Oh, I don't know ...

Which is it? If you have a gauge and use the sender for the light, it will wreck the gauge.

Beck Arnley says 201-1649 for the gauge, 201-1798 for the gauge (I used 1994; I don't know your year and it might make a difference on the plug.) Beck Arnley says "nope" to KG-1102. http://www.beckcatalog.com/

If you have, oh, an '88, RockAuto calls out a Beck Arnley 201-1130 (for '92 and earlier) IF you have the light.