lip doc Posted March 31, 2018 Report Share Posted March 31, 2018 Hi I took my 23 HPS to the shop because when my fuel reads empty there is 25--30 gal. still in it. They said that a lot of the Pathfinder HPS are the same and they fill the new boats with gas and the gauge don't move till they have 25 gal gas in it. Im curious if any one else has the same issue. Thanks . Thank all of you guys very much for taking time to reply to my post and the great ideas you have. I will tackle this soon and post what i find to fix. Link to comment Share on other sites More sharing options...
Bamaskeet Posted March 31, 2018 Report Share Posted March 31, 2018 Fuel gauges are notorious for being in inaccurate. While my 2000V fuel gauge works well, my 2200V is horrible. I either use my odometer on my Yamaha gauge or I track my miles on my GPS to determine fuel usage. If I run normally, I get 4 miles to the gallon, so after 160 miles, I fill up, and will take 38-42 gallons. Link to comment Share on other sites More sharing options...
Lowcountry Joe Posted March 31, 2018 Report Share Posted March 31, 2018 GFS 10 Garmin fuel sensor. The GFS 10 tracks fuel flow use and sends the data to your chartplotter via the Garmin CANet or NMEA 2000.This is a very accurate system for fuel consumption along with other useful data for fuel economy. I'm not sure but I think it can only be used on Yamaha engines 2007 or newer. Link to comment Share on other sites More sharing options...
Headhunter Posted March 31, 2018 Report Share Posted March 31, 2018 Gave up on the gauge on the pathfinder right away. It was never accurate. Added a NEMA 2000 network and tied it into my garmin. If you keep up with it it's like 96% accurate. I ignore the gauge. Link to comment Share on other sites More sharing options...
jason p Posted April 1, 2018 Report Share Posted April 1, 2018 14 hours ago, Lowcountry Joe said: GFS 10 Garmin fuel sensor. The GFS 10 tracks fuel flow use and sends the data to your chartplotter via the Garmin CANet or NMEA 2000.This is a very accurate system for fuel consumption along with other useful data for fuel economy. I'm not sure but I think it can only be used on Yamaha engines 2007 or newer. You don't need the fuel sensor. Lowrance (I think) makes a plug that connects to your motor's diagnostic plug and displays info on your GPS via NMEA 2000. I put one on my boat because we often camp for 2-3 days. It's dead nuts accurate with fuel burn on my HPX and will also display water pressure, temp, etc... Call the dudes at BOE Marine and they'll get you what you need. Link to comment Share on other sites More sharing options...
Sunstone Posted April 1, 2018 Report Share Posted April 1, 2018 I have a 2015 and the gauge is dead on. I know because when I ran out the last bar was flashing. Link to comment Share on other sites More sharing options...
OlivierHPS2300 Posted April 1, 2018 Report Share Posted April 1, 2018 My 2013 fuel gauge works well. Link to comment Share on other sites More sharing options...
justfish Posted April 2, 2018 Report Share Posted April 2, 2018 Are there better aftermarket sending units? Mine just quit after I had tank pumped out. The mechanic that did it of course says ethanol ruined it not him removing it. Not sure I believe that 🙄 Link to comment Share on other sites More sharing options...
coldfin Posted April 3, 2018 Report Share Posted April 3, 2018 Mine does the same. Starts blinking when there was still 27 gallons left. If you go into trip setting, it will show you how many gallons used. I just checked mine and it was accurate within a gallon. You will need to reset after every fill up. Hard to get your mind to trust that there is still plenty of fuel when the bar is blinking empty! Link to comment Share on other sites More sharing options...
Moderator Posted April 3, 2018 Report Share Posted April 3, 2018 I recall the fuel gauges being calibrated on new boats.. My last new boat, the dealer put 55 gals of gas in the tank and set the gauge to 1/2. (The boat does have a 110 gal tank). I wonder if the problems with inaccurate readings are due to the gauges not being calibrated, and those with accurate gauges actually had the gauges calibrated when the boats were delivered.. ? Having said that, can the gauges be recalibrated to correct the errors ? Anybody good with Youtube video searches for Yamaha gauges ? ModMarc Link to comment Share on other sites More sharing options...
Headhunter Posted April 3, 2018 Report Share Posted April 3, 2018 Sounds like a job for a rainy day with an adult beverage! Link to comment Share on other sites More sharing options...
DaveC Posted April 3, 2018 Report Share Posted April 3, 2018 It is very possible that the length of the sending unit is incorrect from the tank supplier, even today with the new diurnal standards and the negative affect that has on fuel capacities the issue that you are describing sounds like the tank supplier ran a series with an incorrect sending unit. If it's to short it can't read. Link to comment Share on other sites More sharing options...
JEM Posted April 3, 2018 Report Share Posted April 3, 2018 On 4/2/2018 at 12:28 PM, justfish said: Are there better aftermarket sending units? Mine just quit after I had tank pumped out. The mechanic that did it of course says ethanol ruined it not him removing it. Not sure I believe that 🙄 Moeller makes a good sending unit. Link to comment Share on other sites More sharing options...
ChrisB Posted April 3, 2018 Report Share Posted April 3, 2018 Moeller, Livorsi marine, and WEMA all make reed switch fuel senders. Measure the depth of the tank with a wooden dowel and order a sender 1/2 to 1 inch shorter. The new Yamaha 6YC gauge has a fuel level calibration in the menu the tank needs to be empty to cal the gauge. There are two options a single point, empty and full, and a Multi point from empty to full in 1/4 tank increments. The older command link gauge let you select the sensor style only, there in no calibration. http://www.wemausa.com/sensors/coverSensors.shtml#.WsPConKG9D8 http://www.livorsi.com/catalog/senders_sfw.htm http://moellermarine.com/product-category/fuel-accessories/fuel-senders-gauges/reed-style/ https://www.docdroid.net/y26DTq9/6yc-info-station-std-compress.pdf Link to comment Share on other sites More sharing options...
Moderator Posted April 4, 2018 Report Share Posted April 4, 2018 Might be worth trying before you open up the tank to replace sending unit.. It is aggravating to distrust the fuel gauge.. MM Link to comment Share on other sites More sharing options...
mustang190 Posted April 7, 2018 Report Share Posted April 7, 2018 On 4/1/2018 at 9:15 AM, OlivierHPS2300 said: My 2013 fuel gauge works well. Mine does too. But,,,,,, I still don't trust it. Keep the tank over half full all the time. Link to comment Share on other sites More sharing options...
OlivierHPS2300 Posted April 7, 2018 Report Share Posted April 7, 2018 Lol.. same here!!! Link to comment Share on other sites More sharing options...
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