Single tank Fsv jump
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Joined: Jan 2001
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From: Virginia
The diagram I am going by is for a older model. If you have a switching valve on the frame under the driver's door area, and it has about 6 wires going to it, and you can find these color wires in the following instructions, we can assume it's the same.
Find the yellow with white stripe wire. That goes to the fuel gauge up front. Cut it.
Find the yellow/lightblue stripe wire. That goes to the rear sending unit. Cut it.
Splice these two cut wires together. That should make the rear sending unit work straight to the gauge. I would bypass the fuel lines at this valve also, splicing the two from the rear tank to the two going to the front.
Find the yellow with white stripe wire. That goes to the fuel gauge up front. Cut it.
Find the yellow/lightblue stripe wire. That goes to the rear sending unit. Cut it.
Splice these two cut wires together. That should make the rear sending unit work straight to the gauge. I would bypass the fuel lines at this valve also, splicing the two from the rear tank to the two going to the front.
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5th Gear
Joined: May 2023
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Ah ok ya the selector valve on mine has 5 but non the less the same. So I can cut the pigtail for the valve plug off and just find those two wires? Can I do that right in the harness or should I run a line to the plug from the sending unit?
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Joined: Jan 2001
Posts: 56,983
Likes: 2,736
From: Virginia
No need to run any wires, if everything is factory and plugged in at the tank, then everything you need is right there at the old valve. The wire going to the gauge in the cluster is there, the wire going to the rear sender is there, as well as the wire for the front tank sender, and some wires from the dash switch to switch the tanks.
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