Backwards Fuel Selector Switch
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Senior User
Joined: May 2014
Posts: 463
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From: Ashton, MD.
Found this.. page 98 matches the colors i saw at the fuel selector switch when i disconnected it from the dash. My guess is the black wire running from the tank currently is now bypassing the fuel selector valve. Which i can confirm visually. But in the original setup it looks like the rear fuel sender had yellow/light blue wire going to the harness in the sender. I think i need to investigate that hardness and see if i can find a couple of chopped wires coming from the selector valve harness. If i can find a chopped yellow/light blue wire i think it's reasonable that i need to reroute that black wire from my current sender back to the yellow/light blue wire on the selector valve. If it's there i think it would fix both my problems.
Fuel Tank Selector & Gauges - Gary's Garagemahal (the Bullnose bible)
Fuel Tank Selector & Gauges - Gary's Garagemahal (the Bullnose bible)
Thread Starter
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Senior User
Joined: May 2014
Posts: 463
Likes: 2
From: Ashton, MD.
Update:
upon further investigation. The black wire running from the tank to brown/white wire on inside fender was power for the fuel pump. Looked closer and found 3 more wires close to the tank tied in going to fuel selector valve. I really couldn’t get to them but decided to experiment a little and cut the yellow/light blue wire to the harness along with the yellow/white wire exiting the harness and spliced them together bypassing the harness. Bingo. Gas gauge now works.... I still have to keep selector on the front tank despite only having a rear tank but now the gas gauge is synced up.
Gotta thank Gary and his bible. The diagram on page 97/98 really helped at identifying which wires were for the sender and what went to the gas gauge!
upon further investigation. The black wire running from the tank to brown/white wire on inside fender was power for the fuel pump. Looked closer and found 3 more wires close to the tank tied in going to fuel selector valve. I really couldn’t get to them but decided to experiment a little and cut the yellow/light blue wire to the harness along with the yellow/white wire exiting the harness and spliced them together bypassing the harness. Bingo. Gas gauge now works.... I still have to keep selector on the front tank despite only having a rear tank but now the gas gauge is synced up.
Gotta thank Gary and his bible. The diagram on page 97/98 really helped at identifying which wires were for the sender and what went to the gas gauge!
Cargo Master
Joined: Jan 2019
Posts: 3,369
Likes: 16
From: Caraway, AR
Update:
upon further investigation. The black wire running from the tank to brown/white wire on inside fender was power for the fuel pump. Looked closer and found 3 more wires close to the tank tied in going to fuel selector valve. I really couldn’t get to them but decided to experiment a little and cut the yellow/light blue wire to the harness along with the yellow/white wire exiting the harness and spliced them together bypassing the harness. Bingo. Gas gauge now works.... I still have to keep selector on the front tank despite only having a rear tank but now the gas gauge is synced up.
Gotta thank Gary and his bible. The diagram on page 97/98 really helped at identifying which wires were for the sender and what went to the gas gauge!
upon further investigation. The black wire running from the tank to brown/white wire on inside fender was power for the fuel pump. Looked closer and found 3 more wires close to the tank tied in going to fuel selector valve. I really couldn’t get to them but decided to experiment a little and cut the yellow/light blue wire to the harness along with the yellow/white wire exiting the harness and spliced them together bypassing the harness. Bingo. Gas gauge now works.... I still have to keep selector on the front tank despite only having a rear tank but now the gas gauge is synced up.
Gotta thank Gary and his bible. The diagram on page 97/98 really helped at identifying which wires were for the sender and what went to the gas gauge!
Thread Starter
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Senior User
Joined: May 2014
Posts: 463
Likes: 2
From: Ashton, MD.
I actually tried splicing the black wire into the red at the harness on the fender and got nothing. Oh well I’m happy! Thanks for the help!
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