Join Date: Dec 2002
Location: Saint Louis, Missouri
Re: Low Fuel Module
I believe you could with some different value resistors, disconnect the sending unit in the trunk, turn the ignition on, and then with different resistors connect to the wire end going to the gauge through different value resistors to ground to see at what value the light would turn on.
If the light was designed to come on at let's say 1/8 full tank (and the fuel gauge system is of a 0-90 ohm design), then a resistor value of around 8 to 11 ohms should turn the light on and have the gauge reading about 1/8 full or a tad less and then if this resistor was changed to a 22 ohms then the light should go off and the gauge reading about 1/4 full.
1974 Spirit Of America Nova (being restored), 1973 Nova Custom, 1968 Chevy II (Garage Find 2012)
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