yxmj Posted April 4, 2018 Share Posted April 4, 2018 1998 XJ no fuel easy to figure out...... the plug from the frame harness to the fuel pump harness got the Robin hood treatment from a stray branch plug is MIA have ... red black blue green orange black out of the tank have...... brown yellow green white black blue green out of frame i am going to guess black goes to black ......that's were my guessing ends anybody have any diagrams close by to point me in the right direction so i can get this guys rig out of the bush and back home Link to comment Share on other sites More sharing options...
Eagle Posted April 4, 2018 Share Posted April 4, 2018 I have a 2000 XJ FSM. Don't know if the colors are the same. Black is ground. Black to black is a good guess. It shows me DG/WT (dark green/white?) all the way from the tank module to the fuel pump relay in the power distribution center, through two connectors. 18 gauge It shows me BR/YL all the way from the tank to the power train control module (PCM), through three connectors. 20 gauge It shows me DB/LG (Dark blue/Light green?) out of the tank all the way to the PCM, through one sensor. 20 gauge. Sorry I can't help more. Colors match on the frame side, but don't match up for the tank side. You're probably good to connect blue/green to blue/green and black to black, but you're on your own for the other two. Best I can offer is that one's 18 gauge and the other's 20 gauge, so try matching by wire size. Link to comment Share on other sites More sharing options...
yxmj Posted April 4, 2018 Author Share Posted April 4, 2018 Thanks Eagle Somewhere in my dim memory I think that the green white on the frame side is power that should go to the orange on the tank..... The other 2 wires must be fuel level and low fuel light? We left the rig there and will be returning this afternoon to try to rig up.... And fyi all frame wires are same size (smaller) and all tank wires are about 2 sizes larger......anybody else have any wisdom Link to comment Share on other sites More sharing options...
Jeep Driver Posted April 4, 2018 Share Posted April 4, 2018 If you don't have it figured out by tonight....... I'll take a pic of mine when I get home, right now it's raining and I have to go to work. Link to comment Share on other sites More sharing options...
yxmj Posted April 4, 2018 Author Share Posted April 4, 2018 Thanks But if I can't figure out the "correct" way by mid afternoon.......then I have a trick that involves a pressurize weed sprayer with fuel in it strapped to the roof rack to feed the fuel rail....not for kids or the faint of heart.....but it will move a jeep to a dry level spot to allow for repairs without having to dig a tunnel in the snow to crawl under it.... Link to comment Share on other sites More sharing options...
Pete M Posted April 4, 2018 Share Posted April 4, 2018 a while back I watched a video of a rally team crossing the finish line while the co driver was sitting on the engine spraying starting fluid or some such thing directly into the intake. and then there's the Bronco I bought years ago. guys said the engine "ran". turns out it ran when you poured gas into the funnel strapped to the opened hood with a little hose running down to the carb. Link to comment Share on other sites More sharing options...
yxmj Posted April 4, 2018 Author Share Posted April 4, 2018 Well…sad to say that is how I came up with the idea originally…at 15 I was making a river crossing in a lifted Chevy Scottsdale when my mechanical fuel pump gave up the ghost (conveniently at the deepest part)……I swam/waded back to shore….walked back upstream a bit to a local farmers dock…..”borrowed” his tinny boat and floated back to my truck….tied off to the roll bar…..took his red boat fuel tank and set it on my roof roped off to my roll bar….ran the fuel line down the windshield and under the hood……did some surgery on the metal fuel line to break it and point it upward ….attached the fuel hose from the boat tank and fired it up and sailed away……(yes I did return the farmers boat and fuel). This turns into a helpful funny story……years later when I was about 23 I was working out of town and staying in a work camp with all the other employee’s …..Friday rolls around and unfortunately for me my only ride home is with a guy by the name of “Donnie” (looked like he had every Grateful dead record ever made)…..we get 1 mile or so down the road and his fords fuel pump dies on us…..already having an idea we walk back to camp and remove the gas take off of a Briggs that ran a cement mixer…..I wired it to Donnie’s inner fender higher than the carb attached it to fuel line and we were off on our 2hour drive home…..ONE GALLON AT A TIME (we syphoned out of the tank into a whisky bottle as we went) Flash ahead about 10 years I am now Driving a brand new Ford….I pull into a small town “watering Hole” to get a refreshment….take my drink and go out on the patio…..about 5 min later I watch an old ford that looks familiar back in by my new truck…..driver jumps out ….pops his hood…..goes in the back of the truck for a Gerry can…..goes back under the hood and pours the gas into his “fender” then closes the hood returns the can…..only when he turns around and starts walking towards me do I recognize “Donnie”……still running on the same tank I wired to his fender 10 years before…..Going done the road one gallon at a time…………… Am I the first person to ever hijack their own thread? Getting back to that I think my next best guess from looking at ever wiring diagram out there is that this may be an aftermarket pump….if I substitute the orange at the tank and the green white at the frame I have for Brown like in the diagrams…..it makes sense Link to comment Share on other sites More sharing options...
Eagle Posted April 5, 2018 Share Posted April 5, 2018 DG/WT is 12 volt power supply Black is ground DB/LG is fuel level sensor BR/YL is sensor ground Which means it'll run if you just splice the black and the DG/WT wires, and worry about the gas gauge back in the driveway Link to comment Share on other sites More sharing options...
yxmj Posted April 5, 2018 Author Share Posted April 5, 2018 Yes sir you are correct Gr/white to the orange Black to black and the pump fired up Thanks Link to comment Share on other sites More sharing options...
yxmj Posted April 6, 2018 Author Share Posted April 6, 2018 2 hours ago, saveevryjp1998 said: I want to meet Donnie. Well it has been a few years... but if he is still running the same rig....he can't be farther than a gallon ahead of you..... Link to comment Share on other sites More sharing options...
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