I already installed a Fuel Blown Dual Pump kit for my evo IX. The kit comes with two red wires and black wires, those are for the fuel pumps. Im using the secondary pump to be activated with the pressure switch LS12 output (im on AEM Series 2). The primary pump will be wired as stock.

The stock plug has 5 wires. Where can i find a wiring diagram so i can get the positive and negative wires to plug the primary pump.

Also the kit has another two wires, (purple and yellow) I assume this is for the Fuel level sensor. The plug has other 3 wires. How do I connect these other two wires?

 

hopefully this will help ya
https://www.evolutionm.net/forums/ev...tall-pics.html

 

Wouldn't it be easier to wire the pumps to both run all the time? It'll be way easier to tune too. I have the Full Blown dual pump kit on my 500hp E85 Integra. I ran a 10 gauge 30amp fused wire to a 40amp relay. Both pumps are wired to the relay and use the stock pump power wire to trigger the relay on/off.

The Fuel level sensor should wires into the same 2 wires they plugged into on the fuel pump stock harness.

 

Would running both pumps not causing too much pressure at idle?

 

Thats what an adjustable FPR is for. But even without one you can simply tune for less injector - assuming they arent massive.

 

muckman it does not work that way with the evos fuel system you will get to much fuel pressure at idle even with a fpr there is a fix for it tho i think member ted b found the fix there is a thread some where on here .