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-   -   Ohm Rating on Fuel Gauge (http://www.peachparts.com/shopforum/diesel-discussion/57829-ohm-rating-fuel-gauge.html)

McRoth 02-21-2003 02:55 PM

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!!

McRoth 02-24-2003 02:32 PM

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!!

jbaj007 02-25-2003 12:03 AM

See this for fuel sender ohms:http://www.peachparts.com/shopforum/vintage-mercedes-forum/50548-fuel-sender-gauge.html?highlight=gauge+ohms

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.

MBwerker 02-25-2003 12:24 AM

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.

McRoth 02-26-2003 09:09 AM

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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