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Old 07-16-2007, 10:00 AM
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Gas Gauge

Hi guys I'm not sure what section to place this in so if this is the wrong one sorry.

I just finished replacing the gas tank and sending unit in my 69 camaro. The changeover went great. However, the gauge is not functioning accurately it is off by a 1/2 a tank. When it reads empty it's half full. What can I do? Thanks for your help.

Dave

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Old 07-16-2007, 10:52 AM
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On the laster Camaros, I know that the sender units have different resistances across the wires - so if you have the wrong sender, it can impact how your gauge reads.

Throw a multi-meter on your fuel sender wires to see how it reads. It should match your old sender unit's resistance. If not, you have the wrong sender unit.
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Old 07-16-2007, 12:30 PM
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Thanks I thought of that and it's the correct sender.
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Old 07-16-2007, 04:28 PM
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Doc here,
  • 1 ) Bend the Float arm to match the gauge.

  • 2 ) Install a rheostat within the range resistance of the sender, calibrate it for "0" at 2 gallons, then seal the shaft (so it won't move OR leak) and mount in a dry sturdy place along the sender wire between the rear and front.

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