boosted.rolla

Thanks guys!

But do you usually hard-wire your fuel pump? I haven't seen a starlet (or at least on a 4e engine swap) did this before, so I'm quite curious that probably there's a wiring problem on my system currently that's why it melted aside from the pump can pull 20 amps.

Is it possible that my fuel pressure changed when I upgraded my fuel pump causing it to pull higher amperage than normal?

okay guys I'm now confused. Hardwiring it directly to the battery and ignition makes the car unsafe specially when crashing but I thought thats how it was wired on stock except using a smaller gauge wire.

Care to enligthen this one? How should I wire my pump to make it safe?

Not sure on ecu pin but you can tap into the fp pin on the diagnostic port in the engine bay.

Got it. I'm assuming this also ensure a fuel cut right?

i believe its the white / blue wire on the pump connector its been a few sinds i did y pump

Yeah that's right on the pump, but which one on the ECU?

^^^ no as your using it just as a signal to ope relay clever thinking richard

Got it. To be clear since I'm away from the car right now and can't remember what wire I used before, which wire I should use from the ECU? I believe I used something from Connector 2.

Common conversion on the evo but i would guess you will need a relay in your citcuit

A small kill switch placed neetly somewhere wouldnt do no harm and its safety

Yeah I did add a relay but I don't wanna add a kill switch.

Just use the original 12v feed to the fuel pump to activate the relay

You mean the feed that comes from the ECU? Is it safe to use? Wouldn't I melt anything or do I need to upgrade this wire as well?

Hi all,

I recently bought Aeromotive 340 fuel pump and it was running fine until my EFI relay melted. I was told I need to run a 10 gauge and hard wire it directly to the battery.

So I ran eh wire directly from the battery to a relay then to the positive side of the pump then run ground wires as well. Now I'm not sure where to tap the switch from the relay to activate the pump. I was thinking to tap it on the ECU but where?

Right now, I just tapped it on the ignition so when the key is on 'ON' position, fuel pump primes but I heard this is unsafe specially when crashing your car.

Can I still use the OEM relay to use a relay switch? I don't wanna put a kill switch to retain the "OEM-ness" of the harness.

Car is ae101 using 2nd gen 4efte (not green label) by the way if that's an issue. All wirings have no problem initially until I changed the pump