Yamaha fuel management not working

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southernstyle995

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my fuel management system is not working on my boat. it didn't work when I bought it last year. ive been researching how to get it working but
cant find anything. do yall know what I need to do to get it working
 
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I assume you are referring to the separate round Command Link Gauge. First step is to make sure you have the fuel flow sensors for both motors. Then make sure the gauge has power. You can tell by watching it when you turn on the ignition. Check all connectors and leads. After that, the trouble shooting gets a bit complicated
Fuel Manage.pngFuel Manage.png
 
On mine one of the flow sensors has a broken wire from a pin in the connector. the cable is too short for me to do anything without removing the sensor. That is a pain because of where it is and the PHILLIPS screws that are holding it in.
It started as an intermittent problem and we would wiggle the cable. You can tell which sensor has a problem by using the button on the gauge. It will read Port/Stbd/Both.
 
seasick said:
I assume you are referring to the separate round Command Link Gauge. First step is to make sure you have the fuel flow sensors for both motors. Then make sure the gauge has power. You can tell by watching it when you turn on the ignition. Check all connectors and leads. After that, the trouble shooting gets a bit complicated
View attachment 8113View attachment 8113
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Yea that's the gauge in referring to. It has power to it just isnt showing the mpg like there is a problem with the flow sensors. Wont be able to work on it till tomorrow but I'll update as soon as I find something
 
 
I don't recall if there is a separate harness for fuel flow data or if it ties into the harness from the motors to the gauges. I don't have a rigging diagram for that model year.
I would guess (hope) that there is one harness for the dual installation and it has a connector in the bilge area to connect the sensor wires.
 
seasick said:
I don't recall if there is a separate harness for fuel flow data or if it ties into the harness from the motors to the gauges. I don't have a rigging diagram for that model year.
I would guess (hope) that there is one harness for the dual installation and it has a connector in the bilge area to connect the sensor wires.
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On the starboard side there is two connectors under the flow sensor an one connector on the port side. Havnt seen anything or any connections that would not make them work. Maybe both sensors are bad idk
 
I’m having the same issue. I have a 2006 sailfish 282 with Yamaha 225s. Not getting GPH or MPG. What could this be?
 

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I had the same gauge, but the older, round one and it needed fuel flow sensors as shown on the image in tread 2
If yo then the sensor may be broken, or the cable has issues like corrosion or is broke.
You need to verify that first to see if this is the problem.
Chris
 
Sardinia306Canyon said:
I had the same gauge, but the older, round one and it needed fuel flow sensors as shown on the image in tread 2
If yo then the sensor may be broken, or the cable has issues like corrosion or is broke.
You need to verify that first to see if this is the problem.
Chris
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Where did you end up hooking the cables up too? Thanks
 
joebonner513 said:
Where did you end up hooking the cables up too? Thanks
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Honestly i can't remeber as it was 1998-2004.
As far i remember there is a cable from the sensor to the gauge, the view above show the same, but not where it goes. Logically it will go to the gauge and plug in there.
You may do a search for the installing instructions of your gauge, there it should be described and check behind the gauge if there is a cable and a plug.
Chris
 
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