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Bad Fuel-Info, using both GFS10 and Yahama Cable?


Bad Fuel-Info, using both GFS10 and Yahama Cable?

Old 08-03-2014, 07:21 AM
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Default Bad Fuel-Info, using both GFS10 and Yahama Cable?

Fuel Info (fuel flow, mpg,tank usage, etc) from the GFS10 fuel-sensor and the Yamaha/Lowrance engine interconnect engine cable seem to interfere with each other at my 740S.

I currently have a Garmin GFS-10 Fuel-sensor and the engine cable hanging on my NMEA2000 bus. With both cables plugged into the bus, I get flashing or sometimes frozen fuel-info being displayed in the 740s screen, but if I disconnect either one of them, I start to get valid data again. All other information ( speed, depth, and so on) works normally. The GFS10 gives me things the engine cable doesn't have (tank usage, fuel alarms, etc), so I'd like to have everything possible... Besides, I just like the bling.

Because of the interference-issue I can't get valid fuel-related data to show on the engine screen, etc. My 'guess' is that it has something to do with same-name fuel-type PNG data messages coming from the GFS10 and the engine trying to out-fight each other at the 740s. I see a couple pages in the 740s manual dedicated to the 0183 and 2000 PNG's, but nothing in detail about them or how they work.

Would it be too simplistic of me to think there could be a way to tell the 740s to ignore the engine-cable fuel PNG's but allow them to be used from the GFS10 cable?

dogdad1 is offline  
Old 08-29-2014, 05:13 PM
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Is there a 'preferred source' option on the 740? I can choose between my garmin gps and the lowrance point 1 on my 5212's this way.
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