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-   -   Fuel pump wiring! (https://www.rx7club.com/alternative-fuels-249/fuel-pump-wiring-1068665/)

sideways-FC 07-31-14 10:27 AM

Fuel pump wiring!
 
Anyone ever have problems with there Walbro 400 wiring getting hot? My fuel pump switch next to my driver seat gets so hot I can barely touch it.

vrx8 07-31-14 06:27 PM

What wire gauge are you using? Are you using a relay ?

sideways-FC 07-31-14 06:47 PM

It's hot with or without a relay. And as thick as stock wireing.

Havoc 07-31-14 09:13 PM

As thick as stock would imply your wiring is to small. The pump pulls significantly more current then a stock FC pump.

I would of assumed its relayed otherwise you may kill your ecu by putting 15+ amps through it.

vrx8 07-31-14 09:47 PM

you need to run 10 or 12 gauge wire to the pump using a relay. the ECU signal wire will trigger the relay.

Howard Coleman 08-01-14 07:47 AM

if you have a fuse in the circuit do make sure it is a 30 A.

sideways-FC 08-01-14 10:32 AM

I will try thicker gauge. And if I'm not running it through the relay it runs of the ecu fuse block.


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