Fuel pump stopped working a couple of days ago, could it be the relay board Options

[JimN73]

I have no power at the pump.

I have 12.4 volts at pin #13 on the relay board.

No power at pin #5 or 7, old eyes can't see the stripe colors very well.

Fuses are good.

Am I missing something?

Thanks in advance.

[JimN73]

and:

3.5 psi pump for carbs, and

the relays are good

[Dave_Darling]

and:

3.5 psi pump for carbs, and

the relays are good

How is it wired? Many different ways to power the pump; whomever did the conversion picked one of those ways. Some don't use the stock relays at all. You have to figure out what they did.

--DD

[JimN73]

and:

3.5 psi pump for carbs, and

the relays are good

How is it wired? Many different ways to power the pump; whomever did the conversion picked one of those ways. Some don't use the stock relays at all. You have to figure out what they did.

--DD

David, apparently used the "Sir Andy classic method", connecting one wire from the 4-prong FI connector to ground. The original plastic 'wrap' is on the wires from the pump. but there have been other splices and I can't see whether the original wiring is being used. I can answer that by making a jumper cable for the ohm meter and checking resistance between the relay board and the pump.

Additional display of ignorance: Does the power from pin 14 go to pin 13 on the relay board? What's the connection between pin 13 and pin 7?

Jim