Fuel Gauge Sending Units compared
You should have made more of this post. Guys the MeterMatch seems to be a pretty good and not expensive help for the problem
TechnoVersions - MeterMatch for Analog Gauge Correction
"MeterMatch is wired between your sender (sensor) and your gauge. It reads the resistance of the sender, then based on your user-defined internal calibration values, it electronically emulates the sender signal to drive the gauge to the desired reading. It treats the input and output entirely separately, so it doesn't care if the input to the gauge is scaled differently than the sender, or even if the sender signal has a reversed sender signal than the gauge - it can correct for that."
You should have made more of this post. Guys the MeterMatch seems to be a pretty good and not expensive help for the problem
TechnoVersions - MeterMatch for Analog Gauge Correction
"MeterMatch is wired between your sender (sensor) and your gauge. It reads the resistance of the sender, then based on your user-defined internal calibration values, it electronically emulates the sender signal to drive the gauge to the desired reading. It treats the input and output entirely separately, so it doesn't care if the input to the gauge is scaled differently than the sender, or even if the sender signal has a reversed sender signal than the gauge - it can correct for that."