Pigtail Connector Help

Do you have any ideas for the two separate IGN 12V Sources and the one constant source?

 

The constant power source I would run directly to the battery or underhood fuse box (be sure to put a fuse in it within a few inches of the battery).
For switched ignition you can use E8 Pin 9 (Orange), it's powered by the IGN fuse (15A) (Hot in Run & Start).

 

Gotcha, I'll do that for the power wire. For the switched wires, it's asking for two separate sources, could I just run a one way diode on each of the leads and run them to the same source?

Holley is concerned about the transmission back feeding the ecu and keeping the engine running even with the ignition turned off.

Let me know what you find out about the fuel pump.

 

I didn't see where it said that but I'll have to look again later.

Are you wanting to use the factory pump and wiring?

 

I think a 12v diode should solve that problem.

I have an DW340 pump installed in the oem bucket. If the factory wiring can still run the pump then great, if not ill have use the holley output wire to trigger the fuel pump relay.

 

You can use the factory wire to the tank but the C/OPN Relay is ground side switched, the Holly system is switching the power side.

 

What power wire goes to the tank? pump?

 

The DW300 (340LPH) pulls 14.4 amps @80PSI. Holley's manual states that no relay is needed for anything less than 15 amps. So, I could wire the pump directly to this green wire as long as you can tell me which wire actually goes back to the tank from the engine bay.

 

15 amps may be pushing it for the stock wire, I'm not sure what gauge it is but I don't imagine it's any bigger than 14 gauge.

 

We’re you able to find what wire it was?

 

The easiest place to tie into it would be the Black/Red wire at the Fuel Pump Resistor or Pin 4 of the Fuel Pump Relay socket.

 

I’ll try to find out what size wire it is

 

14 gauge is rated to 15 amps as well, so looks like it’ll be fine even worst case. I bet you it’s 12 gauge. But I’ll find out tomorrow for sure.

 

Best place to access that wire? Coming out of the fuse box?

 

At the fuel pump resistor.

 

Where’s that located at?

 

Right in front of the battery.

 

Do all trucks come with this? I’m not sure that I have that.

 

All V6 Tacomas 05-15 have it.