07 fuel gauge accuracy

I was looking through the efi live for dummies tutorials, and this specific portion caught my attention.
I'm not sure I understand how to get to this point. I want to correct my fuel gauge to accurately reflect my fuel level.
Am I supposed to data log through an entire fuel tank in order to correct the issue?
Is there something I'm missing?
Thanks in advanced.
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Well, it looks like you need to go to Internal Flash - ECM Sensors - Fuel Level, Voltage to Percent Full Conversion

I believe all of the calibration for the fuel gauge in a Dodge is in the TIPM which EFILive does not interface with.

Thank you guys!

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