It's just a straight wire from the panel connector (pin six any year panel)
to the gauge sender terminal, which is the one farther from the fuel gauge
on tach panel.  Not sure which non-tach.

Unplug panel.  Should see zero ohms from pin six to the gauge pin.  About
105 ohms pin six to fuel gauge sender pin (7 '85+ panel,  8 early).  More
than a megohm pin six to every other pin.

Check it and say panel year and results.

Yrs,
d

On Mon, Aug 27, 2018 at 4:14 PM, Jim. Felder <jim.felder@gmail.com> wrote:

> (SPOILER AERT--I am not claiming that the foil replacement is bad, just
> looking for advice)
>
> Installed the vanagon.com south Africa product. Everything fine, got my
> turn signal indicators back immediately. No longer had to treat the
> instrument cluster like a human brain to get it back in the van in working
> order. Love the LED switchover.
>
> But... not long after the install, the temp LED came on and stayed on. This
> happened about every four times the car is run, and when it happens,
> required going into the hatch and pulling the connector out of the sensor,
> then replacing. Good for another four drives or so. May come on upon
> startup, may wait until I am on the road.
>
> Swapped out for a spare, new coolant level sensor. No luck.
> Pulled the connector and shorted the pins. No luck.
> Pulled the cluster, reset ll the T14 connector contacts. No luck.
> Checked the ground. No luck.
> Swapped the temp gauge with a known good one from a 1991. No luck (worth
> noting that the gauge in the car had been re-capacitored by David B not so
> many years ago, and had been working perfectly).
>
> ??
>
> Contacted Vanagon.org, they are contacting the mfr. I am figuring the test
> procedures they recommend are going to be above my pay grade. Any notion of
> some practical tests that might localize the failure to something?
>
> Jim
>