ABY low volts to fuel pump

[s2dk]

Ty
That was Allso how i thought it to be ��

[mcandmar]

Looks good, basically snip the green/yellow wire to the pump and connect it to terminal 86, then the other end of the wire connecting to the pump onto pin 30. Also make sure the fuse is right at the battery connection, you can get inline fuse holders for wiring up car amplifiers that are ideal.

If you want to get fancy you can add another relay before it that is triggered from a hidden push button, makes a nice sneaky immobilizer on the fuel pump circuit

And just to be a pedant there is no -12v, its just ground, as in 0v.

[s2dk]

Was thinking of just afsnit a switch to the trigger Line that whould be easy
Im going with a 40 AMP relay. Cuz a 450 walbro pump pulls a bit more amps

[Bowie69]

Love the use of -12V on that diagram(!)

[martinjs]

I'm wanting to have a go at this today, I understand the diagram regarding the original yellow/green signal wire, but once the original brown wire is cut, the pump end of it goes to the battery negative, where does the other end go to? is it just left alone?

[s2dk]

As trigger you Can use both wires from original pump
Just use the Brown from the car to feed relay a Ground should work fine

[martinjs]

Got this sorted, 11.1v to the pump whilst cranking, 14v at idle.

[Rikki Kitto]

Good stuff slowly getting things in order fella, fancy doing mine for me

[martinjs]

It's easy to do, the original wires to the pump enter the boot at the back on the left, so very close to the battery.
That's where I cut them.

[Rikki Kitto]