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Petrol Fuel Pump Controller Diagnosis Petrol Fuel Pump Controller Diagnosis
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Old 06-16-2023, 05:23 PM
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Yes, you are measuring voltage drop instead of voltage potential. Connect the negative test lead to ground for measurements. Sounds like your problem is not at the relay though, likely the fuel pump or wiring to it which you need to check next. Try to find some videos on using a multimeter.
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