Jason,
My Mk1 also has two. It is because during its lifetime there have been two
different places the temperature sender was located. Our
cars through time have managed to have both types end up on the same engine!
Joe
P.S. I don't know what the range is, but those senders have a variable resistor
in them that varies with the temperature. To test, get
a digital ohmmeter and connect to the terminal and the body of the unit. Set
the meter on the lowest scale and heat the element. The
resistance should change with the temperature.
"Jason K. Cullum" wrote:
>
> My temp gauge does not work. The wiring is all OK, which leaves one of two
> things. The Gauge or the transmitter. My car appears to have two of them? It
> is a 1296 from a 69 MK3 placed in a 1963 Spit. On the thermostat housing
> there are two sensors threaded into it. One on the Passenger side, where the
> wire is hooked up, the smaller of the two. And one on the Driver's side of
> the housing with no wire hooked up to it, a larger unit. Both appear to be
> temp transmitters. Why would there be two and is there a way to test one to
> see if it is bad? I hooked the wire up to both of them and no reading on the
> gauge either way.
>
> Thanks,
> Jason
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