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Thread: Fuel Gauge Indication Problem

  1. #1
    Private BM59_Fan's Avatar
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    Default Fuel Gauge Indication Problem

    The previous owner of my 710K Pinz installed a VDO fuel gauge on the dash. The problem I am seeing is that the gauge is indicating empty at half tank. I do not think the sender was changed. So could the problem be is it is a 12VDC gauge?

    Any guesses and what should I look for?

    Mike

    Las Vegas NM

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    Private CliffSegar's Avatar
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    At half tank or 1/4 tank?
    As a European vehicle, it goes to "R" when there is about 70Km of fuel left. That's their Reserve setting. There is no "Empty" mark.

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    At half tank. When the gauge is registering empty it takes 10 gallons to fill the tank up to the filler neck.

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    Private CliffSegar's Avatar
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    Finally got out to look at mine with a volt meter. As you can see, it is just a bit over 1/2 tank and the gauge has 3.18 volts to the sense line.20160513_195556.jpgFuelGage.jpg

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    Finally got out to check mine with a volt meter. At a bit over 1/2 tank, the sense line has 3.18 volts.
    20160513_195556.jpgFuelGage.jpg

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    I just installed a VDO guage in mine. There is a small screw on side of guage to adjust it. Use plastic insulated screwdriver. The sending unit should be 0-100 ohms depending on full or empty. That can be checked with multimeter.

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