Neil,
Relays activate when a low current electromagnetic coil is energized.
The coil then closes the contacts of a switch.
The switch has heavy contacts and carries high current on the circuit with
the heavy gauge wires.
The little thing that you think is a resistor is the coil.

The standard VW numbering system for relays lists the low current circuit
with the coil as pins 85 and 86.
The current carrying circuit is 30 and 87.

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
neil N
Sent: Friday, April 18, 2008 9:25 PM
To: vanagon@GERRY.VANAGON.COM
Subject: "yawn" Another (trivial) Jetta conversion Fuel Pump relay
question.... ;^)

Hey guys.

My conversion now starts and runs. There were several problems why it
didn't run before. I'll report these to the list later.

One thing I had to do, was run a jumper between 30 and 86 on FP relay.
In Bentley, it shows an internal connection doing the same (though
there's no "86" shown):

http://tubaneil.googlepages.com/FPrelaydiagram.jpg/FPrelaydiagram-full.jpg

Interesting. But there are about 3-4 different relay model numbers
listed that are used in the '93 - '99 Golf/Jetta. Maybe some had that
internal connection.

My potentially trivial quesiton:

In diagram on fuel pump relay, there is an icon between 85 and 86. I
looked inside and there was a resistor.

Why is that resistor there?

Just curious,

Neil.

--
Neil Nicholson. 1981 Air Cooled Westfalia - "Jaco"

http://web.mac.com/tubaneil
http://tubaneil.googlepages.com/