First Mitsu dealer told me to replace the fuel gauge. After the repair the code didn't clear.
They told me to replace the instrument cluster.
Took it to a different Mitsubishi dealer where they told me to replace the fuel sensor itself. After that repair the code still didn't clear.
They then told me what the first Mitsubishi dealer told me that the instrument cluster itself was broken.
New instrument cluster, still no code clear.
Grounding issue? Wire shortage?
Any thoughts or ideas would be appreciated.
Also the car runs fine, no notable engine/performance issues.

 

At this point you need to trace the wires from the fuel pump/sending unit and look for damage.

 

If you have a wiring diagram you could also remove the connector at the pump/sending unit and ground the sending unit wire (directly to a good ground).
If the low fuel light/gauge go "Full" - the wiring and dash is good - it is the sending unit.


Why didn't the dealership do this?
[shrug]