Aftermarket fuel gauge for rally car??? HELP

rslegacy · Post by **rslegacy** » Tue Oct 17, 2006 5:49 am

I have a carbon fiber dash in the car thus eliminating the stock cluster. How do I hook up a aftermarket gauge? What are the ohms? How do I check the ohms with having duel sending units?

Car= 1990 Subaru Legacy Turbo conversion
Walbro fuel pump/stock fuel tank/stock sending units

HELP???

Post by **Legacy777** » Tue Oct 17, 2006 6:04 pm

The two senders are wired in series, so their combined resistance gives you an overall fuel level.

Check out this thread for the resistances
http://bbs.legacycentral.org/viewtopic. ... uel+sender

rslegacy · Post by **rslegacy** » Tue Oct 17, 2006 11:21 pm

Cool thanks Josh!

rslegacy · Post by **rslegacy** » Wed Oct 18, 2006 2:34 am

NEW PROB!! What gauge will work for the ohms??? If the original owner of this post will let me know that would save me a huge headache down at the auto parts stores trial and error trial and error???

Thanks, Gabe.

Post by **Legacy777** » Wed Oct 18, 2006 6:12 pm

I don't know. You'll have to check the specs on various aftermarket gauges and see which guages have a resistance range that is similar to the stock.

Basically, you're looking for a gauge that responds to the following range

1.0 - 5 ohms when full, and
92 - 96 ohms when empty

IronMonkeyL255 · Post by **IronMonkeyL255** » Thu Oct 19, 2006 1:43 am

http://egauges.com/vdo_mult.asp?Type=Fu ... ies=Vision

This would likely work. I believe the bottom-most option would be the correct one.

rslegacy · Post by **rslegacy** » Wed Oct 25, 2006 7:35 pm

Thanks again to all the help!

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Aftermarket fuel gauge for rally car??? HELP

Aftermarket fuel gauge for rally car??? HELP