Gas Gauge/Sending Unit problem
Here are additional graphs I made with the A100 sender and also added the resistance needed to cause MY gauge to read E, 1/4, 1/2, 3/4 and F.
Notice that the Spectra has 48 ohms at 1/2 tank. 48 ohms should have been at under 1/4 tank. The A100 reads about the same.
That's why your gauge reads 1/4 to E when you have 9 gallons of gas
Additionally I just today found this info in my 67 FSM
Empty is 73 +/- 12 ohms (61 to 85)
Full is 9.6 +/- 1 ohm (8.6 to 10.6)
Here are additional graphs I made with the A100 sender and also added the resistance needed to cause MY gauge to read E, 1/4, 1/2, 3/4 and F.
Notice that the Spectra has 48 ohms at 1/2 tank. 48 ohms should have been at under 1/4 tank. The A100 reads about the same.
That's why your gauge reads 1/4 to E when you have 9 gallons of gas
Additionally I just today found this info in my 67 FSM
Empty is 73 +/- 12 ohms (61 to 85)
Full is 9.6 +/- 1 ohm (8.6 to 10.6)
