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Fuel Pump Power Feed, Sensor? Help Me Drrrrift Cheers

EZSLDR

By EZSLDR,
in Engines & Forced Induction

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EZSLDR Apprentice

EZSLDR

Posted
Posted

Hey guys

Ive just upgraded to a walbro pump to my surprise was a no name pump in it with power going to earth and earth goin to power, some how it worked, but now it doesnt power my walbro the positive is not geting power so i suspect dodgy wiring somewhere as it has been repowered with a 25det

but

im going to run a straight feed to the battery in the boot with a relay, what i want to know is can i 'tap' into the sensor power wire which goes to the fuel pump to trigger the relay? or upon starting does the sensor wire lose its power

cheers in advance im new to this shit

Bick033 Collaborator

Bick033

Posted
Posted

You should have an earth from the ecu to the fuel pump relay (on my gts4 it was in the boot not sure if it's the same) to switch it when running. It's easy enough to just use a new relay to rule out bad wiring plus up rate it a bit. Using the ecu signal to pin 85,battery positive to pin 30 and 86,then 87 is your positive to your fuel pump then just make sure you have a good earth for the fuel pump.

EZSLDR Apprentice

EZSLDR

Posted
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Posted

sorry forgot to mention its an r32, ive got a relay wired up already earth straight to the battery same as power i really just want to know what wire i can get away with to use(in the boot) as the power that goes from the car to the relay, maybe i could use a power wire that is in the plug that goes to the original relay?

ARTZ Grand Master

ARTZ

Posted
Posted

yea i read that its great but my power wire to tap into doesnt have power was just wondering if i could use another source as the power trigger feed

have you tried/tested it? it wont have power unless car is switched on

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