Fuel pump just quit Options

[surfdogskier]

So I had everything working well on my carb conversion with the exception of the fuel pump which constantly ran unless I pulled the ground wire per SirAndys carb conversion write up.

Now my pump will not work at all. I direct wired it to the battery to see if the pump was good and it worked. I connected a 12 volt wire to my relay board at the black/red wire #13 connection and it worked. So no issue with the wire. However something on the relay board or relay prevents it from working when the key is turned on.

I was going to wire it to the 2 other points on the relay board to get 12 volts (T4b and the #12 pin on the T12 connector). However, with the key turned on, I am not getting 12 volts to either of these. the T4b, I am getting 2 volts and the pin 12 on the T12 I am getting 4 volts.

My only other option to get 12 volt power is to connect to my coil but I have read this is not a good idea.

Looking for some guidance.

[surfdogskier]

I swapped the relays around but there was no difference. I do have power getting to the relay plate but not working at specific locations it should be after that. I located 2 pins on the T14 connector that work when the key is on and turn off when the key is off. I think one is to the starter or alternator light plug based based on the 73 relay board picture LieroFox posted above. I am going to direct wire to that lead and see how that goes and post back.

[lierofox]

I swapped the relays around but there was no difference. I do have power getting to the relay plate but not working at specific locations it should be after that. I located 2 pins on the T14 connector that work when the key is on and turn off when the key is off. I think one is to the starter or alternator light plug based based on the 73 relay board picture LieroFox posted above. I am going to direct wire to that lead and see how that goes and post back.

Yes, the other ones that comes on with key on is the alternator warning light at Pin 2 (the blue wire) and the back-up lights at Pins 3 and 4 (gray/brown wires)... which I forget which one provides power for that one. I believe it's Pin 3 that provides power, and Pin 4 that goes to the reverse lights.

[porschetub]

I swapped the relays around but there was no difference. I do have power getting to the relay plate but not working at specific locations it should be after that. I located 2 pins on the T14 connector that work when the key is on and turn off when the key is off. I think one is to the starter or alternator light plug based based on the 73 relay board picture LieroFox posted above. I am going to direct wire to that lead and see how that goes and post back.

Yes, the other ones that comes on with key on is the alternator warning light at Pin 2 (the blue wire) and the back-up lights at Pins 3 and 4 (gray/brown wires)... which I forget which one provides power for that one. I believe it's Pin 3 that provides power, and Pin 4 that goes to the reverse lights.

.
Not sure but appears you have a bad relay board,if you can't wire as per the tech article you have issues.I know this as mine was DOA,I ended wiring thru the heater boost fan with a 7.5amp fuse till I got a rebuilt relay board...night and day really,just saying