Can you identify these?

[rick@brubakerbox.com (Rick Alexander)]

I'm in need of the knowledge of the esteemed list. Please take a look at
this photo of my spare head http://www.brubakerbox.com/temp/MVC-759F.jpg

I've been looking for an injection fault in Rolling Roc ('87 1.8 16V). I've
been cleaning all of the electrical contacts in the wire loom and looking
for a location for an oil pressure sender. That's how I happened upon these
questions.

For the sensor in the upper left I can not find a wire to attach to it. VW
would not have installed a sensor if there wasn't supposed to be something
attached to it. Is this one of the oil pressure sensors?

The sensor in the upper right has a red/white (might be yellow) wire to it.
If it's red/yellow then it should be the temp sender for the gauge.

The sensor on the back of the head has a black/green wire attached which I
can't seem to find in my Bentley.

Now just for my education, is the one in the lower right the thermo time
switch and the one on the lower left the injection temp sensor?

Can anyone out there help me to make sense of this? Any suggestions for a
location for a pressure gauge sender?

Rick Alexander
http://www.brubakerbox.com
http://clubs.hemmings.com/hams/
http://clubs.hemmings.com/vwsrus/