How do know how many amps?
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Postmaster
Joined: Apr 2004
Posts: 3,005
Likes: 2
From: Santa Clarita
How do know how many amps?
I'm changing out my gas tank and relocating one to the under the bed. I know they sell two types of sending units, one 30 amp (original fuel gauge) and a 90 amp (aftermarket gauge). My gauge is accurate right now, but I'm not sure if the gauge in the dash is the original or has been replaced. The sender doesn't look original. How to check which amp my gauge is so I can get the right sending unit?
Hotshot
Joined: Oct 2004
Posts: 15,882
Likes: 88
From: Durham NC
senders usually work by varying resistance, sure you don't mean ohms rather than amps? I sure wouldn't want to run 90A of power into a gas tank! If so it should be able to read the resistance range of your current sender with a basic VOM meter.
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Postmaster
Joined: Apr 2004
Posts: 3,005
Likes: 2
From: Santa Clarita
Your right, it's OHMS. Amps, ohms, watts, what the heck, its all the same to me... So where do I hook up a OHM meter to read how many ohms my gauge is or my sender is putting out? Also, if my gauge is 30 OHMS and I use a 90 OHM sender, what will happen? The sending units are $60, hate to experiment with having to buy two senders to find out which one works. Or I can replace the gauge in my dash with an aftermarket which I really don't want to do.
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