75 450sl fuel pump - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 04-19-2010, 08:53 AM Thread Starter
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75 450sl fuel pump

I'm putting backon my fuel pump and didn't label the leads.
Does anyone know which is the hot wire?

lbooher is offline  
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post #2 of 2 (permalink) Old 05-16-2010, 12:59 PM
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Turn the key on and take a test light and test them with a multi meter or simple test light with probe. There's only two so one will be hot which will light the test light and the other one won't light the test light. Simple.
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