[PavementPounder]

Yes, I'm referring to the connector at the top left of the diagram I posted. I'll edit the attachment for clarification. The harness running to the A/C compressor takes a rather visible route and is connected/undisturbed, so there's no mistaken identity here. And yes, that is exactly the sensor type I've been hunting for under the intake with my mirror-on-a-stick, but the packaging is horrible.