Question for anyone with fox bony mustang fuel injection mass air.I have been working on project with small block 5.0 and have installed all mustang fuel injection with Ron Francis stand alone harness with al9 computer and mass air, all sensors and on engine for fuel injection are new and I am having an issue with cold start. In the morning I go out to start and turn key on wait for fuel pump to cycle and go to start and it starts and dies instantly and will do it about 5-7 times and once it start it won’t idle and burps through intake,and constantly have to tap gas pedal until it idles on its own

any help would be great other than starting it runs fine and after starting it won’t due it till next am