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Mystery electrical plug under intake manifold

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1999 C2 6spd

Hey guys, I have known of this connector but recent repairs let me finally get my eyes on the plug itself and some wiring.

The plug is the same plug as is found on the vacuum control valves. (both valves have wires plugged into them)

The wires come out of the engine harness bundle between the vacuum reservoir and the driver side intake manifold, with the wires extending forward to the point that the wires can be seen coming forward of the AOS and the cylinder head, when viewed from below.

I didn't have my phone on me to snap a picture sorry!

Thoughts on what this connector is supposed to be plugged into? Engine runs just fine without it connected (or as fine as it always has!)

thanks all!

Edited by rallygabe
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I tried looking through the wiring diagrams in my Bentley to no avail.

I went down and cut back a bit of insulation and the wires appear (to me) to be Violet and Violet/Blue. Another look over the wiring diagrams and I didn't see any two wire sensor the feeds the ECU with that color combo?

Could be red, it looks like red/violet is the 5V feed out of the ECU?

Edited by rallygabe
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