2012 Twin cam R1200 GSA fuel gauge behaving erratically

Kickstart1

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Jul 7, 2025
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Huddersfield
The fuel gauge has become erratic since a few software issues. Majority of issues (ABS not working) were resolved by re writing the original dealer installed.
However first time since I bought the bike from new the gauge is up and down like a fiddlers elbow. Flicking between empty and 200 mile range!
Are there any fixes known to resolve it?
I have checked the ohms reading from the sender unit and this increases when the float is moved, I have checked for obstruction and anything that may fowl its movement, cleaned and made sure the pins in the connector are connecting.
 


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