Reworking harness for high volume Fuel Pump

[Matthew Jeschke]

I have a separate post on fuel pump pressure. Finally bit the bullet and bought a high volume fuel pump for my build. Hopefully helps with fuel issues. Long story short...

I need to figure out what terminal pins are used in the fuel pump connector.

I have the pins for the under hood junction block but need the pins for the fuel pump connector. I have a couple of those connectors with butt joints they give you in pump packages but I want to do it right and re-pin the connector. The new pump calls for 12 gauge wire.

Here's additional notes on my fuel pump upgrade:

https://matthewjeschke.com/fuelpumpupgrade/

 

[Matthew Jeschke]

This project is turning into a nightmare. There's SO little information online about various Delphi connectors and their corresponding current load at 14 volts. I think the fuel pump circuit will handle 15 amps. I'm going up to 13.5V... But I'm not for sure what gauge wire the factory already has. I purchased 12 gauge to get me from the junction box to the pump housing. There's a harness from the pump housing to the pump itself too. I think that's 14 gauge, but I don't know number of strands in wire to calculate their aggregate cross sectional area. Sigh, anybody have experience with automotive wiring, enough to know what factory did? I seem to have gotten deeper than FSM details.