Thrillhouse

I've just removed the constant earth off the relay to the ecu trigger as my understanding was wrong. Thanks for your help guys.

Correct. It's currently wired like the picture with the trigger getting 12v from the ignition.

Yeah I have each relay getting power from a fuse block I have in the boot all with 50amp wiring. My current trigger wire I'm using is a 12v acc wire which is turning the pumps on. They are all turning on fine I just wanted it to be correct.

My understanding was the factory wire was the black and pink one but it doesn't see any power.

R32 Gtr fuel pump wiring Hey there, I have a r32 Gtr which is running a nismo lift pump to 2 Bosch 044s and a surge tank. I've wired all three pumps up to new relays all getting power source from the battery in the boot. Each pump has their own earth which are solid, sort and to bare metal. During my wiring of the pumps I removed the factory pump relay. I just need a hand getting the right switch feed for my relays. I'm currently using a 12v accessories wire in the boot as the switch wire for the relays so the pumps receive 12v as soon as the keys are on accessories. What I'd like to know is which wire should I use for the switch of the relays ( I thought it was pin18 black and pink) out of the ecu but that wire has no power from it. Any assistance would be great for what wire people use from the ecu. Cheers