I'm having a problem knowing how much fuel I actually have in my tank. I ran out of gas with the gauge showing 1/4 tank. So I filled up 5 gal and 2 gal cans and it made the gauge show completely empty. Drove it to the store and put 25 bucks more in for a total of 16 gallons. Now it shows 1/4 tank, but it should be closer to 1/2. Could it be the gauge or the pump electronics?