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Author Topic: Fuel Gauge Issue  (Read 1231 times)
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« on: April 11, 2010, 07:34:30 PM »

I have a 1988 Camaro 305 TBI. The fuel gauge constantly reads past full no matter how far I drive before I fill up again. How can I fix this please? Any help will greatly be appreciated.
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« Reply #1 on: April 12, 2010, 06:07:37 AM »

You have an OPEN circuit. Ground wire or sender wire may be disconnected(or cut).

1969 Camaro SS350, M21, 12 Bolt, 01B LOS Build
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« Reply #2 on: April 13, 2010, 02:17:56 AM »

Hi there, I had the same problem a while back.
Your fuel guage sender is faulty
When your sender drops to a certain level it becomes open circuit either because the wiper of the sender loses contact with the resistor or the resistor is rusty.
The best way to fix it in my opinion is to replace the sender.
From memory, the resistance of the sender circuit when the tank is full should be around 90 ohms and near to 0 ohms when empty, or the other way around , can never remember.
In any event if the resistance is any more than 90 ohms you have an open in the circuit somewhere, my guess is the sender.

Hope that helps
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