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Old 07-05-2020, 04:07 PM   #1
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Floscan Issue

For some reason my Flosan on my port engine is reading "off" where the gallons per hour display is? Any ideas where to start?
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Old 07-05-2020, 05:12 PM   #2
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Could be a partially clogged flow sensor. Was it accurate in the past? How do you know it is off? Could be an engine problem causing higher fuel burn. You could swap the sensor inputs at the gauge and see if it stays with the engine or is in the gauge.
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Old 07-05-2020, 09:14 PM   #3
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Originally Posted by Comodave View Post
Could be a partially clogged flow sensor. Was it accurate in the past? How do you know it is off? Could be an engine problem causing higher fuel burn. You could swap the sensor inputs at the gauge and see if it stays with the engine or is in the gauge.
The gauge reads “off”. Where is the flow sensor?
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Old 07-05-2020, 09:28 PM   #4
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You will have two sensors on fuel lines on the engine. One before the injector pump, and one on the fuel return line to fuel tank. Your error is likely to be with a loose wire from one of them or perhaps a loose wire at the back of the gauge itself.

I stopped using my Flowscan 8 years ago and can't remember the wiring config, but there is likely to be a fuse in the power wire to the gauge. I would look at that first.
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Old 07-05-2020, 11:35 PM   #5
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With diesel engines there are 2 sensors with gas engines only 1 sensor.
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Old 07-11-2020, 02:11 PM   #6
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lightly tap the flow meter on the fuel line with a metal wrench. This may dislodge anything that may have it stuck. This happened to mine and this trick worked
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