Need help identifying a wire

[1999GTX]

Need some help identifying this brown with a black stripe wire coming outa the harness and running along the valve cover and then it's capped off , thanks .

 

[1999GTX]

 

[1999GTX]

 

[SubwayGuy]

I'm not sure which it is, but out of curiosity, why do you need to know?

 

[industrialfish]

Best I can tell from searching is that it's a ground wire for something.

 

[SubwayGuy]

Best I can tell from searching is that it's a ground wire for something.

That was my thought, after thinking of it for a bit.