ATR Dual pump wiring

[Jerryl]

Anyone have a wiring diagram?

I tried cleaning up the wiring in the engine bay and messed it all up.
Deleted the hobs switch to have XFI trigger second pump via relay.
Didn't mess with tank wiring. Both pumps run all the time, the way I have it wired.
Disconnect the fuel pump prime wiring and only one runs.

Is the second pump triggered by adding voltage to the fp prime connector?
The prime connector is hot. Is that correct?

 

[pacecarta]

xfi uses 12v for the fuel prime to trigger the stock relay which then sends another 12v source to the prime wire (pump when stock)
the secondary pump needs to be triggered by "aux 2 out " and that is a ground signal so your relay coil for the second pump needs power and the aux 2 provides ground .. what you set the aux 2 out parameters to (min tps /min KPA) effects when the secondary pump will run

 

[Jerryl]

Thanks Doc. Was hoping you would see this.

Electrical is not my strength so to clarify:
I am aware XFI Aux is used to ground the relay for activation, based on set parameters.
Not sure i understand: Is the prime pos with XFI when the car is running? (That's what I am seeing)

 

[pacecarta]

prime wire has 12v when running and is used to power the 12v side of the relay coil that runs the primary pump , you provide ground to the relay coil and power for the pump on pin 30 of the relay

 

[Jerryl]

Thank you Doc!