I ordered an oil pressure sender from IPD but it arrived with threads too long to correctly insert. The old one showed no signs of failure so I put it back in.

But it's tragically devoid of an electrical connection. No wire on it, and no dangling connector in sight. Occasionally, the low oil pressure idiot light on the dash will flicker. I wonder why it's not on solid? Colombo has a theory.

There is a black wire coming out of the alternator loom that may have been on the oil pressure sensor at one time. Its insulation is broken and it hangs indolently, occasionally brushing its bare end against the subframe.

I suspect that it's supposed to go to the oil pressure sensor, and it grounds to show low oil pressure, and when it brushes the subframe and grounds, that lights the idiot light.

Am I right, or am I right?