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Old 02-21-2003, 02:55 PM
McRoth's Avatar
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Location: Grafton, OH
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Ohm Rating on Fuel Gauge

I'm wondering what the Ohm rating on the fuel gauge is? I'm putting in a second tank that has a fuel level sender in it & want to link it to the dash gauge instead of putting in another one. The new sender is a 35-240 Ohm. My car is an 82 240D.

Thanks!!

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Michael Roth

1982 300TDT Wagon
1982 240D Euro!, 4spd manual-Parts car now, dead engine
88 Jeep Grand Wagoneer-fixing up for offroading
1989 Ford F150 (rust bucket) For Sale!
1953 Dodge B-4F, 1 1/2 ton Stake Bed (new restoration project)
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Old 02-24-2003, 02:32 PM
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OK, Anyone have any idea where I could find this information? I tried emailing Phil at Fastlane, but he didn't have a clue.

Thanks!!
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Michael Roth

1982 300TDT Wagon
1982 240D Euro!, 4spd manual-Parts car now, dead engine
88 Jeep Grand Wagoneer-fixing up for offroading
1989 Ford F150 (rust bucket) For Sale!
1953 Dodge B-4F, 1 1/2 ton Stake Bed (new restoration project)
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  #3  
Old 02-25-2003, 12:03 AM
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See this for fuel sender ohms:Fuel sender or gauge?

I just put an ohmeter across the two pin terminals on an old 126 fuel gauge that I have around and got 55.3 ohms.

There was a thread that Stevebfl responded to (which I can't find with a "search"), in which I believe he mentioned 90 ohms for the gauge. I'm going by memory on this one so consider the source.
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1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)
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Old 02-25-2003, 12:24 AM
MBwerker
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gauge resistance

I measured 68 ohms between pins 3 and 5 on the back of an 83 TDT fuel gauge. The manual shows these pin outs (3 to the fuel sending unit) and 5 is power from the number 12 fuse. Hope this helps.
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Old 02-26-2003, 09:09 AM
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Thanks for the replies guys! That helps quite a bit. Looks like my new sender will work as long as I can wire it up right.

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Michael Roth

1982 300TDT Wagon
1982 240D Euro!, 4spd manual-Parts car now, dead engine
88 Jeep Grand Wagoneer-fixing up for offroading
1989 Ford F150 (rust bucket) For Sale!
1953 Dodge B-4F, 1 1/2 ton Stake Bed (new restoration project)
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