Fuel Pump – Current Waveform

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The health of the fuel pump and its operating speed (RPMs) can be rapidly assessed by a quick look of its current waveform. The shape of the current waveform, pump speed and average current draw are good parameters by which to diagnose a failing fuel pump.  Details of the procedure and known good fuel pump waveforms are contained in the following PDF file:

fuel-pump-current-waveform.pdf

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