Fore hat wiring to FPDM help.

Venom351R

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Cobra needed a pump upgrade so I bought a fore hat with GT Supercar Improved pumps. I'm stuck on the wiring part of where this harness would tap into the FPDM. When buying these I was told there was some wiring that had to be done into the FPDM.
The harness shown plugs into the harness coming off the hat and I'm stuck on what gets wired where on the FPDM for the wires at the end of the harness
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01yellercobra

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If you follow the brown/pink and red/black wires they should split at some point to power the pumps. You could tap the new harness into those wires.
 

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Venom351R

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If you follow the brown/pink and red/black wires they should split at some point to power the pumps. You could tap the new harness into those wires.


Thanks. Since posting this I decided I'm most likely going to go full return even though I didn't want to originally. Have to talk with the shop I ordered the hat / pumps from on Monday and see what the rest of the system would run me
 

Venom351R

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So just realized I cant make this into a return system as the pumps are for a return less system. There is a place that makes a custom harness to get it all wired in but they are booked out for I don't know when. I'd rather have the custom harness done but not knowing when there will be time for this I may just go and try splicing these in myself as what was explained above.
 

01yellercobra

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The GT pumps can be run in a return style system. It's usually the other way around. The old Walbro 255's would burn up in returnless systems. I had AEM 320's that couldn't handle a returnless set up.

Splicing isn't hard. If you still decide to go return style I would look up Malcolm's write up on how to get them to prime like stock.
 

Venom351R

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I was directly told from where I bought them from that the pumps are for a retunless system. Being that I have conflicting information I'm just going to get the car brought down to where the custom harness can be made for it and do it that way. Wont be soon but the car currently runs / drives and the last thing I want is stupid problems to now happen just as its getting into nice weather here for the summer
 

cobracide

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Lethal performance even says you can run these pumps return or returnless..

 

Venom351R

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Lethal performance even says you can run these pumps return or returnless..



Does not specify it can be used in a return system in the description

"So, if you plan on building a returnless fuel system, or just upgrading your OEM returnless pump, save a bunch of cash by going with the Walbro pump versus the OEM, and you'll be getting a better pump to boot"

So where is the part where is says they can also be used in a return system because I'm not seeing it?
 

cobracide

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"Use in return or returnless configurations"
 

Venom351R

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"Use in return or returnless configurations"

The Walrbro site states that, not the first one you linked from lethal
 

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