Fuel pump probs

Hello from the states, I recently got a 1986 cabrio 5 speed with a 16v and I'm all happy cuz it's my project car. Today I tried to hook up my external fuel pump (not the in tank fuel pump) and came across 3 wires shown in the picture. The issue is I didn't take the old pump off and I don't know how the wires go on. Please if anyone can help me that would be great!

red/w and the Brown go to the pump… The brown/white
I don't have a clue on.

I would test the brown/white with a meter to ground to see if it is a power or ground.

I wonder if the black wire with the DIY crimp on it is an earth that someone has taken off the fuel pump earth (brown wire) to fix a problem elsewhere. Can you trace it and see where it goes?

Thanks guys ill look when I get home!! And try and find out there that black wire leads too. I've been trying to find a wiring diagram to it and haven't. I'm going to buy a Haynes manual for the car soon.

Saulty said

I wonder if the black wire with the DIY crimp on it is an earth that someone has taken off the fuel pump earth (brown wire) to fix a problem elsewhere. Can you trace it and see where it goes?

Briano1234 said

red/w and the Brown go to the pump… The brown/white
I don't have a clue on.

I would test the brown/white with a meter to ground to see if it is a power or ground.

UPDATE: when I got home and followed the black wire to my fuse box and saw this 

This is scary cuz that is my turn signal fuse I do believe (also the fuses are OLD ones and I'm going to replace all of them) what's even scarier is the 15amp fuse was almost melted off as seen in this picture 

Any ideas on why that is? Maybe for a power source? I just don't see why -_-

Just guessing here but maybe they used it to power the fuel pump. Assuming your car was a K-Jet originally, the fuel pump relay uses a signal from the coil to switch on and then powering the fuel pump. If that signal from the coil is missing or broken or the fuel pump relay has failed then the car won't start. I reckon someone has put that black wire in to get the fuel pump running, which is a bit dangerous really because the pump will run all the time the ignition is on!
Has it done any damage to the fuse box?
I would connect the two original wires to the pump and start diagnosing any faults from there.
Keep us posted.

Depends on what socket the fuse is in.
It is also a good thing to reseat the fuses occasionally, that is remove them and reseat them in the same socket.  It cleans the contacts and prevents heat corrosion.

Gotta love the Previous owners hack jobs.

POS  previous owners Suckage.

But not me as I usually oem fix'em.

I'm away till Friday but I will update you guys more on this. I need to get a new battery, what size battery do you think I should get?

from cabby-info.com (thanks you Kammy)


Looks like that wire was a fire waiting to happen…. 20 amp fuse in a 10amp socket Turn signal brake lights?
Wholey Bovine Excretions Batman….. could of been Explosive Cow Flatulence…….


You do have the number for 9-1-1 right?

Briano1234 said

from cabby-info.com (thanks you Kammy)


Looks like that wire was a fire waiting to happen…. 20 amp fuse in a 10amp socket Turn signal brake lights?
Wholey Bovine Excretions Batman….. could of been Explosive Cow Flatulence…….


You do have the number for 9-1-1 right?

 
Lol yea, I'm just confused on why the previous owner did this -_-