What should this wire be connected to?

[HersheyPAGreg]

So I wanted to change my spark plugs a few days ago. I pulled off the first plug wire and noticed a wire that's not connected to anything. Not sure if it was like that before or if I accidently disconnected it (and broke the cover) when I pulled off the plug wire.


So what should it be connected to? I followed the wires and they start at the oyxgen sensor (just a guess that's what it is)

The black and white one goes into the firewall



with the green and yellow being the loose one. The loose one has a spade connector at the end. I've looked around to see where it could connect to but haven't figured it out.


Also, any tips for getting that plug to thread? I'm having some trouble there and there's not much room to get my hand in.

Thanks in advance,
Greg

[blusmith]

It attachs to the temp sensor - you will it between the spu plugs

[131lover]

It can be the oilpressure sensor or water temp sensor,start the engine and check.
Alf

[azruss]

If think both oil pressure gage and light sensor are down by the oil filter. I think the 2 on top of the head are temp related.

[White78]

Here is a recent picture. I believe that the green plugs in to the sensor closest to the fire wall. Assuming mine is correct.

[HersheyPAGreg]

Alright, thanks for the advice all. I'll get on this shortly. What can I use to fix the cover? JB Weld?

Thanks.