Marine Electronics Forum

yamaha fuel mgmt. system not working

Old 06-06-2004, 11:53 AM
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Default yamaha fuel mgmt. system not working

i recently had twin two fifty hpdis installed on my boat with the fuel mgmt. system included. the system works fine in every regard except for the miles per gallon feature.when the technician hooked it up to the speedo it gives me mpg but not very accurate. when he hooked it up to my brand new lowrance lms 320 ...nothing. he has replaced the gauge ,connectting cables still nothing...i know the lowance is working.. any suggestions?
bejeron is offline  
Old 06-06-2004, 05:43 PM
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Default RE: yamaha fuel mgmt. system not working

I've noted mine is funky too. Mine works if you make sure it's set to mpg instead of gph before you fire the motors/ignition up.

Try it.
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