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Old 06-22-2013, 08:22 PM
Topp dawg Topp dawg is offline
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Boat: 2003 Mastercraft X10
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How can I calibrate my OEM fuel sending unit.

My fuel sending unit says I have a quarter tank more fuel than I really have. If I pull the sending unit out of the gas tank it shows a quarter tank even though I pulled it completely out. Can anyone point me in the right direction if this has already been discussed on the forum. My mechanic said I need to buy a new sending unit but I am hoping to reset it or calibrate it somehow. I have a 2003 X10, it has a 45 gallon gas tank that is "I think" 9 inches deep. Thank you in advance.
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Old 06-22-2013, 08:45 PM
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mikeg205 mikeg205 is offline
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Boat: 1995 Pro Star 205 5.7 Liter
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prolly need a new sender... www.isspro.com should have a match for it. Does it have a calibration screw? Pictures helpful.
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Old 06-22-2013, 08:55 PM
Topp dawg Topp dawg is offline
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I did not see any calibration screw. Maybe tomorrow I can get a pic of the top of the unit and post it. I found them online for 65 bucks. Are they just plug and play? Or is there some trick to the install after I screw it into place and plug in the wire harness?
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