I have a 91 chevy 4X4 that i blew the engine in 4.3l V6 manual and swapped it with a 95 5.7l V8. Auto trans. Now that i have engines swapped and sure that all wiring is plugged in when i try to start it there is no fuel coming out of the injectors. I took a ecm computer out of a 91 chevy 2X4 auto trans am i fighting my self can any one give me guidance? I kept the trans a manual as it was stock.