Engine/Transmission (1998.5 - 2002) ? for anyone who has installed aftermarket aux, fuel pump

[DMcPherson]

I will be installing a holley black pump inline on the frame rail. I have a couple questions though,

1. what size is the stock fuel line?

2. what do yo usire it to? I was thinking of tapping the signal wore from the stock pump to a relay feeding the new pump so it ran on the same cycle.

If I can do this can anyone tell me which wire to tap?

um... I think thats it lol. thanks for any info. Dan

 

[GKarpen]

3/8" is the supply side and get rid of the banjo's. Tap the wire going to your LP and use the relay. I wired mine so that the LP voltage coming from the ECM runs the relay. This releaves stress on the output from the ECM. From the relay U can do anything U want from there.

 

[DMcPherson]

cool, thanks, thats what I was thinking. I got the stock plugs from work today to make a pigtail so i can have a seporate aux. pump harness that can be bypassed if need be.