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Old 04-12-2009, 02:57 PM   #5 (permalink)
dcb
needs more cowbell
 
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Join Date: Feb 2008
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pimp mobile - '81 gs 250 t
90 day: 96.29 mpg (US)

schnitzel - '01 Golf TDI
90 day: 53.56 mpg (US)
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Moved here because it is out of scope for the prebuilt.

The signal from the tank is much too coarse for accurate mpg feedback, though you can get a general idea from it. I can't say why your circuit isn't working though, far too many variables there.
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