Good morning all.
I've just replaced my motor with a Boston Bob lovely 1.9. in my 1985
Vanagon GL.

Question I have is that I've labled all my wires in the engine compartment
prior to taking them off, and have everything re-connect but the oil
pressure sensor.

Originally there was a brown wire connected to the sensor that terminated
in a male spade connector that was enclosed in a yellow plastic cover w/
the VW and germany markings on it. I take it that is original.

I don't recall seeing it connected to anything else.

Now the only other wires I have left un spoken for are coming out of a
wiring harness on the drivers side of the engine compartment near the
firewall is a red wire w/ a male spade connector in the same yellow cover
w/ germany markings and a brown cable w/ a grounding lug connector on it.

This is a smaller guage wire, so I don't *think* it is a 12 volt supply.
Not as large as the red going to the alternator.

The Bentley specifies the oil pressure sensor wires are Blue and Black,
however, I could not find one such as that. Red genrally donates a hot
wire.

Any ideas ?
Thanks much !