fuel sensor pull up resistor issue.
Posted: Wed Feb 12, 2020 5:42 pm
i have looked in the forum for an answer but nothing seems like my issue, i am using the ford fuel sender in the stock tank, i have used the 5v reference from the dash 2 and 1k pull up resistor.
i emptied my tank and took a reading of 0.57v, i then started to add fuel 1L at a time and the voltage decreased in increments at a steady rate, i got to 30L and the voltage was 0.19v, i added another 1L and the voltage just dropped out to 164mV.
i was thinking either the pull up resistor was to much of a value to start with or the fuel sender load was a bit too much for the 500ma 5V rating from the dash2 , i was going to empty the tank and use a TO-220 5V regulator and 1K resistor as a stand alone supply but thought i would get some advice here first, i was expecting to see something like 1.5v-2.00v empty to start with but not the low reading i got.
any advice would be appreciated, TIA.
i emptied my tank and took a reading of 0.57v, i then started to add fuel 1L at a time and the voltage decreased in increments at a steady rate, i got to 30L and the voltage was 0.19v, i added another 1L and the voltage just dropped out to 164mV.
i was thinking either the pull up resistor was to much of a value to start with or the fuel sender load was a bit too much for the 500ma 5V rating from the dash2 , i was going to empty the tank and use a TO-220 5V regulator and 1K resistor as a stand alone supply but thought i would get some advice here first, i was expecting to see something like 1.5v-2.00v empty to start with but not the low reading i got.
any advice would be appreciated, TIA.