When turning the key on, the gas gauge flickers and goes slightly below empty. Turn key off, and it slightly rise back to empty.
Disconnected sender wire from back of gas gauge. Most forums say the gas gauge should go to full. Gauge still flickers and slightly goes below empty.
Checked sender with ohm meter. Measures around 2.6 to 3.3 at bottom. As soon as I start moving the arm upwards, meter goes to 1.
Made temporary wire with connectors and connected sending unit directly to sending post on fuel gauge and when the key is turned on, fuel gauge still flickers and goes slightly below empty.
No matter what I do, I get the same result. Gas gauge flickers when powered on and moves slightly below empty.
I don't really know what to rule out because I don't get the results the forums say I should when I do the different tests. I'm leaning towards bad sending unit, but I don't understand why the fuel gauge won't go to full when I disconnect the sending unit wire from the gauge. Worst case option would be to buy new sending unit and new wire from sending unit to gas gauge.