You might visit www.van-cafe.com.  They have a nice tech article about
vanagon oil pressure and include detail instructions and pictures on
how to install the VDO guage and sender.

Barrett
'88 Wolfsburg

On Apr 18, 2006, at 5:37 AM, Doug wrote:

> Folks,
> Am installing a VDO oil pressure gauge and sender. Need help with the
> connections, and haven't been able to decipher the letter designations.
> The seller kindly left out the VDO manual.
> The sender has a screw-on terminal marked "G", and one marked "WK". the
> gauge has 3 screw connections, one marked "+", one marked "-", and one
> marked "S".
> Is this really a potentiometer, so it makes no difference which sender
> connection I call "signal"?
> Is the signal input to the gauge the "S" term., while the "+", and "-",
> power the gauge?
> Cost me $$$, so I don't want to blow the set-up!
> All help appreciated.
> Thanks,
> Doug in CT
>