Marine Electronics Questions? Ask a Technician for Answers ASAP
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Is your Lowrance fuel flow sensor the EP-60R flow sensor? or some other model?
Make sure it is compatible with the Simrad display, that you have the same protocol capability on both ends of the connection, or if not, that you have a good adapter installed correctly between the Simrad display and the Lowrance fuel sensor.
Let me know the model of each one of the two devices (fuel sensor and display) and I will instruct you further and in more detail.