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				aftermarket fuel gauge optins
				Posted: Sun May 07, 2006 4:02 pm
				by guzzla
				iv had a longe range tank fitted  to my 80 but the fuel gauge for the new sub tank isnt reading correctly. everyone i know with this setup has the same problem.
would it read correctly if i was to replace it with an autometer fuel gauge and sender unit to match or what else could be done ?
cheers,
nathan
			 
			
					
				
				Posted: Mon May 08, 2006 2:48 pm
				by wannaberacer
				Yes you need to make sure the sender and the gauge are matched to each other.
I thought I could just use a fuel gauge I bought together with a long range tank from a Patrol that had the sender in it already. Wrong!! It read empty when it was full...and half full when empty. I bought a new gauge for $50 to match the resistance of the sender...all ok then.
It's all to do with the resistance of the sender.
Cheers
			 
			
					
				
				Posted: Mon May 08, 2006 3:12 pm
				by chimpboy
				With a few measurements, followed by a few resistors, it should usually be possible to calibrate gauges to suit senders. In most cases, anyway.
Sometimes the float arm needs a bit of bending as well so that it's actually lying at the right angle at the sensor for any given fuel level.