This is for my LS2 build...im trying to find out where everything goes on the harness from the ecu..Theres three plugs that come off it and plug back into the car next to the battery and I was wondering if anyone knew what they were and the pinouts for those as well....

 

Have you checked your FSM?

 

In case you need it. http://boredmder.com/FSM/Nissan/350z/2004/