I am in the process of pulling my motor for a build and came across this random wire...Where does it go? I traced it back to the bundle of engine harness that goes to the AC Compressor but that doesn't really help figure out what it supposed to be attached to. Maybe someone could help

 

looks like the power steering pressure switch wire, senses when the PS pump sees excessive load (turned to/past the limit) so the ecu can increase idle. its helpful, but not necessary. pretty common for them to break off like that

 

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