Rewiring Fuel gauge
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Rewiring Fuel gauge
I have an 83 E350, due to its age and wiring issues i have decided to rewire the fuel system. I purchased the fuel selector valve (fsv) and have wired the selector switch to it. I am about to wire the fuel gauge to the fsv but this is where my knowledge runs very thin. I taped into a wire from the back of the cluster and am set to hook it to the fsv. before i do this i was hoping you could give some insight. I checked the gauge itself with a double a battery and it works. i found the wires that go to the gauge with this same method of double a battery, I tapped into the positive side and was going to run straight to the fsv. I need to know if this is ok?
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Joined: Nov 2007
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From: Denver Metro Area, CO
Welcome to FTE. 
Attached is the factory wiring diagram from 1981, afaik yours is similar.
There are two configurations shown; one with the dual-tank stuff, the other without.
Write back if you have any more questions....
.
.
Attached is the factory wiring diagram from 1981, afaik yours is similar.
There are two configurations shown; one with the dual-tank stuff, the other without.
Write back if you have any more questions....
.
.
Post Fiend
Joined: Jul 2004
Posts: 8,786
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From: Northern California
The van uses the same type toggle switch and components as the pickups.
The diagram shows all the circuits inside the toggle switch.
What engine did the E350 have? If it's a 460 it might have hot fuel handling, and that uses a different diagram and components.
The diagram shows all the circuits inside the toggle switch.
What engine did the E350 have? If it's a 460 it might have hot fuel handling, and that uses a different diagram and components.
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From: Virginia
He may be hinting that this is the setup his van is using. To the original poster; Does your gauge wiring go to the fuel switching valve?
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Joined: Nov 2007
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From: Denver Metro Area, CO
The diagram seems to show a black/light-green wire feeding a noise suppressor and then the ICVR (cuts the voltage down to around 7V as I recall).
From there, to the printed circuit, to the gauges from there.
The sending units provide variable resistance to ground, making the gauges show higher or lower as the resistance changes.
From there, to the printed circuit, to the gauges from there.
The sending units provide variable resistance to ground, making the gauges show higher or lower as the resistance changes.
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