fuel gauge sender, Bench testing |
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fuel gauge sender, Bench testing |
80cap |
Dec 5 2016, 01:46 PM
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#1
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Member Group: Members Posts: 317 Joined: 6-February 15 From: ohio Member No.: 18,405 Region Association: None |
Before I install my fuel tank is there a way to bench test the fuel level sending unit?
Thanks Brian |
neilbardsley |
Apr 16 2021, 01:21 PM
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#2
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Newbie Group: Members Posts: 25 Joined: 11-October 20 From: England Member No.: 24,754 Region Association: Europe |
Ok. It's not the wiring. 1 ohms resistance on the wire from the gauge to the sender. Now it's reading 1/4 full if I turn the sender upside down. My son has a 1st Class Degree in EEE (first time he has been useful) so had a 100ohm resistor, which we measured at 80. We put this in between the gauge and ground wires nearest to the sender and the gauge empty! Therefore I need another 10-20oms from the sender?
I forgot to mention I had the sender apart and cleaned it. It's 4-69 ohms so maybe I need to clean again?? I did also buy a new vdo fuel sender. It doesn't have a separate circuit for empty and I haven't been able to get more than 5 ohms off it so I'm not keen to use it yet. |
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