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Missing In Low Revs In 1St, 2Nd And 3Rd After Fuel Pump Install


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Didnt wana short anything or create a fire lol, so do u think the black/yellow wires are the ground wires - theres three of them goin to one. I tried to call you a few times today. If you comin down to Syd tomorrow to do Sir RBs rewire, I can come see you, if the roads are dry and you are free, then I would like to get it road tuned as well or otherwise Easter??

Oh and my no. is 0416424446, I think it is set to private

cheers

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I havent planned with Michael yet. I still havent hadthe balls to ask my fiance yet lol.

U should both drive to my place and ill do it all :) u can cruise up here together.

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Ok cut the yellow/black wire. Then disconnect pin 86 from the relay end. Cut the terminal off this wire. Connect this earth wire to the yellow/black wire coming from the pump.

Then the other yellow/black wire that joins to 3 or what ever u said it does needs a terminal on it and connect to pin 86.

Try this

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thanks man, going to try this now, did u forget to mention that I need to cut the green/white wire goin to pump and connect the pump end to pin 87 and the ecu end to pin 85? Will do that I think. Please text me ur address

cheers

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All went well. Fixed up the wiring to the fuel pump. Road tuned the AFRs.

Needs a turbo to manifold gasket a decent dump pipe an a highflow cat then we will see how it goes on the dyno.

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R34 gtt fuel pump wiring is

Green white from pump to chassis earth. 

Green white from ecu to pin 86 earth

Black yellow from ecu to 85 positive trigger

Black yellow from fuel pump to pin 87. 

Pin 30 battery 12volt supply

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Thank u Jez, the tune went great, its running smooth as ever, as you mentioned, need a 3" hiflow cat, turbo-manifold gasket, (dump pipe maybe later) and a re-tune on the dyno for power figures, ign timing maps, more boost, knocking and tuning 4th and 5th gear tuning. And I gotta fix that fuel tank seal as well. So many things to do, need to get it out of my head asap.

I recommend Jez AA++. If any of you thinking of getting a tune(Nistune, Power FC, Haltech) or any electrical / mechanical work, he is one top bloke, DVS Tuning located at Central Coast. Check him out, he was awesome to deal with, +1.

Thanks again mate, you did a great job.

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  • 8 years later...

Mine R34 gtt is having the same issue as rondofg all the wirings fkn hacked to bit I followed your wiring above but I'm having a issue as I'm. Trying to wire up a solid state relay instead as I'm running the walbro hellcat 525 and it was melting 40amp relays

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