Sounds like the one that is usually attached to the end of the alternator and has a
rubber cap over it. It was used somewhere way back to attach some diagnostic tool or
some such.
Never heard of anyone actually using it for anything.

Jerry

----- Original Message -----
From: "Michael Rule" <mikerule@UFL.EDU>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Sunday, July 04, 2004 9:21 AM
Subject: VW part# 025919101

> HI All,
>
> anybody have any idea what the above # is for?  Found this
> connector on the topright of the engine, near the alternator,
> unplugged- typical elec hood aprx. 1cm dia (circular), with 3 pins
> inside- followed wire (tan colored) straight to the back of the
> engine right below (what I believe is) the throttle body, where
> the other end is plugged in with the part numbers on a small black
> hood... afraid to pull that end as I am not sure if I can get it
> easily back in place!  Thanks, Mike