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|Rich||Can't get Fuel gague to work right?? Installed a new sending unit,new gague and circurit board also buryed the fuel peg past the full line. Not sure if there is supposted to be 12 volts to the sending unit or not or does it work on neg. resistance??? New Volt meter and this works fine need so help. Rich.
|Dale G. basgall||Rich : The fuel gauge is actually a volt meter also except the face says fuel instead of volts. On your + lead to the gauge itself you should get supply voltage but you need to touch one lead, the - to frame ground and the other to the + term on the gauge. You will see 12vdc on the meter. The - lead goes back to the sending unit which is nothing more than a variable resistor to ground. If the gauge is grounded solid to the - on the battery and the gauge is getting the full system voltage it will peg the meter and as the resistance changes in the sending unit so does the voltage at the gauge itself.
A small 1.5 volt battery may just bump the meter while 5 volts may swing it half way. What is happening is your gauge must be grounded to the frame - somewhere. Should you need any other assistance please write back on the forum.
Dale G. Basgall
|Rich||Anyone have a wiring diagram from plug on dash tofuel tank???? Rich
|Rich Gabriel||Dale, You were right on the money with my problem found it yesterday, gauge was grounded THANK-YOU Rich.
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