I tried researching and googling and all sorts but I can’t find a thing about what this could be. I also tried following the wire as far as a I could, and it runs from the exhaust manifold over the top of the engine and into the steering shaft boot. It then runs around under my dash above my pedals and then runs what looks like up the side of the dash, I have pulled the a pillar but the wire isn’t there so I think it goes to something in the dash, but I don’t know. Any ideas? I wanted to get a different exhaust manifold but I didn’t want to pull the trigger until I figured out what this is and what it does.