2005 Corvette E40 SPS flashed for a manual transmission in another non-GM chassis - no BCM and no CAN Bus contact with the PCM.
The engine starts and runs but I have the fuel pump wired to always be on with the key.
The fuel pump relay wire C1 Pin 45 is always hot +12v from the moment that the PCM sees key on power. It is supposed to only pulse on to prime the pump and then go on once cranking begins.
Any ideas what is causing this?