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Old 03-03-2014, 07:47 PM   #1
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What OHM sending unit and gauge?

Hey all, in the process of replacing gauges. Autometer sells multiple OHM rated fuel gauges, for example 0-90ohm.

I am unsure which fuel gauge to purchase because I have done the 20 gallon tank mod. So with the stock system, it reads as "past full" for the first 10 gallons, then returns to normal operation. Because the tank is fuller than the system knows.

I understand that since I have upgraded my tank fuel level, I will have to switch out sending units as well as the gauge to match. I simply do not know which exact parts to order - being the correct 20 gallon sending unit and correct OHM rated fuel gauge.

Thanks for the help!!

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Old 03-03-2014, 08:09 PM   #2
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Pretty sure they're 80 ohms.

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Old 03-03-2014, 10:31 PM   #3
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The stock tank should've been 15gal, so it should only read full for the 1st 5 then go back to reading normal.

The stock gauge reads 0 ohms empty and 80 ohms full. But that shouldn't matter if you are replacing sending unit and gauge, just get them to match.
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Old 03-04-2014, 01:36 PM   #4
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I wouldn't worry about in less both are bad. I've had mine off since I got the jeep
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