What's the amp draw on the pumps your using? Are you using the OEM wires to power the pumps? It's known that the OEM power wires are not adequate in supplying power to higher amp aftermarket pumps. For example I am running two Walbro 485's. I ran a 10AWG power wire from the battery to my relays. The relay output power wire to pump is 12 gauge. The ground wire needs to be the same gauge as the power
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