Ah, another tidbit of knowledge to place in my bulging reference archive.
Thanks Mike
--
Jim Thompson
84 GL 1.9 "Gloria"
84 Westfalia 2.1 "Ole Putt"
73 K Ghia Coupe "Denise"
72 411 Station Wagon "Pug"
oldvolkshome@gmail.com
http://www.oldvolkshome.com
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On Thu, May 22, 2008 at 8:57 AM, Mike S <mikes@flatsurface.com> wrote:

> At 08:11 AM 5/22/2008, Mark Thoma wrote...
>
>> One of the things I desperately need to know is the resistance across
>>  the fuel level sender when the tank is 'full' and 'empty'.... the
>> manual doesn't mention it  anywhere.
>>
>
> Actually, the manual mentions it in the section on checking fuel gauge.
> A setting on the VW 1301 tester of 55 should be full, and of 560 should
> be empty.
>
> Now, for the first time anywhere, I will reveal the super-secret
> formula for converting the VW 1301 tester setting to ohms (I'm serious,
> try to find this anywhere else).
>
> It is N/2+10.
>
> So, full is (55/2+10=) 37.5 Ohms and empty is (560/2+10)= 290 Ohms.
>
> Enjoy.