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Category: Classic Car
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A 0-30 Ohm gas gauge and a 0-90 Ohm fuel sending unit..12 volt

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How do you make a 0-30 Ohm gas gauge and a 0-90 Ohm fuel sending unit on a 12 volt automotive system compatible?


The easiest way to get a close reading is by soldering a 47 OHM (1 watt >=) resistor between the fuel gauge output terminal of the sender and the metal base of the sender - it will sweep pretty normally; it will read 'EMPTY' before it really is, but this is a good thing because you will always have reserve fuel in the tank - Thanks, Dave

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