Main fuel relay
I'm having a problem getting my fuel pump to prime when it is cold. I've narrowed it down to the relay, I think. When I turn the key to start, I get 12v at the ECU to the fuel pump side of the relay, for approximately 4sec. I have power from the fuel pump fuse to the relay. I just can't get 12v to go to the fuel pump. I've changed out the relay and I still have the problem. When I'm having this problem the relay feels like it is working but weaker than when it is working. I know they have two coils in this relay. So could only one be working? I seem to have this problem when it is cold and it eventually runs after about 30mins of troubleshooting. Anyone have experienced this problem? What can I do or check? By the way its a 2001 ITR.