fuel management does not work

[Searider]

Hi there ,
My Yamaha fuel management does not work anymore . The gauge still displays everything except the fuel burn which makes the sensor suspicious ..
Is there any way how I can test either the sensor or the gauge ?
I checked the 3 wiress going from the sensor to the gauge and they are all ok .
I checked the screen of the sensor it was not blocked .
I blew through the sensor and can hear very well the paddle wheel spinning .
Any more ideas ?
Before I place an order I want to make sure to order the right thing ..

Thanks in advance !
Jürgen

[boats.net]

When you blow through it should see a reading on gauge as paddle wheel turns, if not may be bad sensor or wiring.

[Searider]

When I blow through and the wheel spins I do not get a reading on the gauge .
The 3 wires I have checked from the sensor to the gauge - all good .
Is there no methode to test the sensor independently from the gauge ?
Cheers !

[boats.net]

There is no test procedures in manuals for it, check continuity on wires in harness, if ok replace sensor.