Fuel gauge always full

[bil1024]

Using the FFR GPS Gauges, new sender in tank, always shows full, is there a reset or something ?

[egchewy79]

Did you calibrate the gauges yet?

[i.e.427]

As Chewy said, check the calibration of the gauge. It is generally sent with the proper calibration but poop happens.
I will say though that I have had more than one RF harness have the wires crossed at the tank. This is a problem since the sender grounds itself to the fuel tank as well. So if the wires are backwards the tank will always read full and never change. If that's the case and you don't have the tool to properly de-pin the connector at the tank, cut the wires, swap them, solder them and heat-shrink them.

Frank

[Jeff Kleiner]

To elaborate on Chewy and Frank’s comments, if it still pegs full after calibration it indicates an open so check continuity of the wires between the sender and gauge.

Jeff

[bil1024]

Thanks guys, di a recalibration and worked ! Good thing I kept that button

[egchewy79]

Keep that button. In fact I bought a second one and installed both under my dash. One is connected to my speedometer to toggle through the odometer, elevation, 0-60 time, etc. the other is connected to the clock that runs fast and needs to be perpetually reset about once every couple of months