T0fuman
04-17-2013, 11:00 AM
So my Sr wasent strarting so i check my all the basics fuel/spark. Wasent getting a pulse to my injectors so I started with a ecu swap. Thing fired right up... problem solved right? Well when i went to tuck the ecu and had everything buttoned up it wouldnt start again....FML. After fiddling with the harness and swapped wires I began to smell fuel (because each time I would dick with something I would try to turn the car over) So i unplugged my wire running to the fuel pump. Tryed again and the damn thing fired up, then died because it had no fuel. Plugged the fuel pump in and tried to start it...nothing. WTF! Unplugged, the car started again then I plugged it in real quick and the car kept running. The way my pump is set up the power wire runs to a nissan relay (big and green) then out of my cars stock fuse panel a power wire to a fuse then to that relay... the relay then goes to the stock harness. Any ideas on whats wrong. The swap is 3yrs old and was done by a shop that I bought it from.
If you dont understand that here is a quck diagram
Fuel pump---------Relay====One wire goes to a fuse---Stock Fuse panel for 12v
______________________==Others go to stock Harness
If you dont understand that here is a quck diagram
Fuel pump---------Relay====One wire goes to a fuse---Stock Fuse panel for 12v
______________________==Others go to stock Harness