Can anyone tell me what this is?

[Uncle_Joe]

In reassembling the motor after changing the head gasket i have this wire but Looking around, I don't see where it goes. It is on the passenger side of the engine compartment and the wire is pretty long.
Anyone know??
TIA

 

[mrrsm]

THAT Lime Green Thing looks suspiciously like an "Oil Pressure Sender Switch" Weather-pack Connector. Mind How you Route it to avoid the Exhaust Manifold area:

 

[Mooseman]

Yep and to confirm, in this video, you will see it and explains why you got no errors.