I am currently swap a TBI setup onto my 79 corvette to replace to slobbering 4bbl carb. Donor is a 93 chev 1500 5.7 with a 4l60e. It has the 625 PCM. I have sorted thu the harness and installed it with the complete tbi setup. I have not installed the 4l60e yet, but plan to over the winter. Problem is it will not run. When i turn the key the fuel pump will run for 20-30 seconds which seem longer then it should, then when i crank i get no injector fuel spray or spark. Will the trans not being connected stop the engine from running ? I have grounded the blue trans wire and tunerpro reports position as neutral. Codes that i get are 12, 43, 59, 67, 81 and 82. None that i think will stop it from running. The truck did run and drive before i pulled the motor and trans. Any help troubleshooting would be great. Thanks