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MakoRich
Ralph, I put a new fuel tank im my 17ft Mako with a new Tempo sending unit. The fuel gauge came with the boat (its says 1995 on it) The gauge shows no reading, everything is hooked up correctly. Is there anyway to check the gauge to see if its bad before I buy a new one? Thanks ,Rich
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outboardwizard

Hello the fuel Gauge can be tested by verifying 12 volts at Gauge with power on I terminal and g ground terminal and grounding the sender wire s terminal and Gauge should go to full.

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Ralph, The Outboard Wizard
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MakoRich
should I ground G terminal or put power to it? Thanks, Rich
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