FiTech EFI Tuning Forum

Please or Register to create posts and topics.

help with force fuel setup

installed a Go EFI 4 600hp master kit, im having major issues with the pump stops running . when I turn the ignition on the pump turns on and sprays gas and shuts off. I don't think the white wire is big enough.

I think that is normal, it removes any air and primes the engine, it is adjustable (think accelerator pump), although not heavy it is designed to run a comparable size pump.

The wire to feed the pump is marginal but should hold. The worst is the connector. I don't know how old yours is, but the older ones like mine had all the wires through one plug that is junk to handle all the current. The pump leads on my connector melted the plastic and damage the connector. I didn't realized it until my pump stopped working. I ended up connecting the pump and battery wires through a better rated connector to fix the problem. You can try with a relay as well but you would lose the PWM variable pulse, if you care.

Here is a link to my thread on the topic: https://fitechefituning.com/fitech-efi-tuning-forum-2/topic/6-pin-connector-melted/#postid-5076

1971 Mach 1 Mustang w/Ram Air, 408-4V stroked Cleveland, Hooker headers, FiTech EFI w/ RobBMC PowerSurge pump
Quote from tony-muscle on October 14, 2020, 10:03 am

The wire to feed the pump is marginal but should hold. The worst is the connector. I don't know how old yours is, but the older ones like mine had all the wires through one plug that is junk to handle all the current. The pump leads on my connector melted the plastic and damage the connector. I didn't realized it until my pump stopped working. I ended up connecting the pump and battery wires through a better rated connector to fix the problem. You can try with a relay as well but you would lose the PWM variable pulse, if you care.

Here is a link to my thread on the topic: https://fitechefituning.com/fitech-efi-tuning-forum-2/topic/6-pin-connector-melted/#postid-5076

thank you so much for you guys answers and your quick response

, can I cut it before or after the harness for the white wire .

im sorry im new to this, if I cut the white wire back to the connecter and replace it with a thicker wire . Fitech go 4  600hp efi with force fuel.

I doubt that it matters, the connector is to aid installation, I would follow the hints in the link that Tony-Muscle gave you.

I just replaced the connector for which you have to cut part of the wires. Use the new connector for both, the battery feed to the TBI and the feed to the pump. Both will see about the same amount of current.

1971 Mach 1 Mustang w/Ram Air, 408-4V stroked Cleveland, Hooker headers, FiTech EFI w/ RobBMC PowerSurge pump