furyus2
Well-Known Member
Hey, I'm wiring up a fuel pump relay. Battery is up front. Pump is in the back. Where do I mount the relay? Up front by the battery, or back by the pump? I think up front, but would like others input. Thanks.
Relays should be close to the item it controls.
I use the enertia switch out of a 2000 and up Ford. the junkyards are full of them, just look in the trunk.
Enertia switches must be wired into the control side of the relay. They are not rated to handle pump current.
I use the enertia switch out of a 2000 and up Ford. the junkyards are full of them, just look in the trunk.
Enertia switches must be wired into the control side of the relay. They are not rated to handle pump current.
So, for those of us who aren't that smart with wiring, would that be the lighter gauge switched power wire? Is it wired by just cutting the relay wire, and wiring it one side in, one out?
I use the enertia switch out of a 2000 and up Ford. the junkyards are full of them, just look in the trunk.
Enertia switches must be wired into the control side of the relay. They are not rated to handle pump current.
They are wired in series with the power wire in every one I have ever seen. That is one thing I like about fords ,It makes it nice to hook a scope up to and check out the fuel pump on the feed wire.
Here is a schematic of a 2000 Ford :
They are wired in series with the power wire in every one I have ever seen. That is one thing I like about fords ,It makes it nice to hook a scope up to and check out the fuel pump on the feed wire.
Here is a schematic of a 2000 Ford :
You are correct about the Fords wiring the enertia switch into the pump power wire. What I should have said was some after market fuel pumps pull more current than a stock Ford and I've never known what the max current rating is for the switch, so I wire them into the control side.
Exactly. You can also hide a toggle switch or other switch somewhere and use it for anti -theft.....if "they" can't turn on the fuel pump, "they" aren't driving your car very far.
So, if I wire the switched wire from the relay, to the inertia switch, to the kill switch, to oil pressure switch, to fused source, isn't that a lot to ask of the one wire? I bought a 30 amp switch, and the circuit breaker from battery is 30 amps.can I wire the switch into the battery wire?
Exactly. You can also hide a toggle switch or other switch somewhere and use it for anti -theft.....if "they" can't turn on the fuel pump, "they" aren't driving your car very far.