my car is going to get tuned this weekend so i was wiring in a relay for the fuel pump and e fans. i have the proper pins on the ecu pinned and connected but it wont power the fuel pump. if i take the trigger wire off the ecu and put it to any power sorce it will run. does the ecu supply a voltage or a ground to trigger the relay? same wiht the e fans? i have those wired the same but i am worried it wont run. i already went into the ecu and made the the pins are enabled. car does run so its not a power issue. thanks!