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I have been fitting an rb25 to my Datsun 260z dedicated track car.

I am trying to nut out the wiring for the fuel pump. So far I have the whole Intire loom from the r33 from front to back fitter to my Datsun. Once I get it running then I will chop out what I don't need.

The final pice to my puzzle is the fuel pump circuit.

I know on the ecu the fuel pump rely wire is #18 (black/pink)

And the fuel pump module is #@104. (Orange)

Problem is the moduel it's self is missing. Will this stop the fuel pump relay working?

Can I bypass it and if so, do I use the black/pink wire or the orange wire to trigger the relay?

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https://www.sau.com.au/forums/topic/441270-rb25det-fuel-pump-wiring/
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The FPCM only changes the voltage so the pump doesnt flow as much at idle (because its not needed obviously)

So if you run the wire from the ECU to signal a relay and then just run power from the battery through the relay to the pump you should be fine

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