Can anyone help with this problem? I have a 2006 limited edition busa. Yesterday I cranked it and it ran fine. I cut it off to check a vacuum line and replace the fuel line. When I tried to start it back up it would not start. The fuel pump will prime and build fuel pressure to 45lbs which is where it's set to. After that when I turn it over to crank it the pressure drops and the pump will no turn on because the ecu will not send out 12 volts to the pump. Also the ecu will not send out 12 volts to the fuel injectors. If I turn the key switch off or turn the on/off switch off and back on the fuel pump will prime then shut off like normal but when I try to crank it the pressure drops and no voltage is sent to the pump or injectors. Has anyone ever had this problem or have any idea of what might be wrong? I'm thinking the ecu is bad but I don't want to buy one and that not be the problem. Please help...