Can someone show me what connects to the c145 connector near the front passenger side next to ac pressure switch. Its a red and orange plug that controls fan and fuel circuits.

 

Does the connector match a fan connector? 12ga red and orange wires? If so, it's the fuel/ECM fuse holder. Out a 20a blade fuse in it. There's a protective cover mounted to the chassis near the battery

 

No Its wider. The fuse holder on the inner fender is the fuel pump fuse and my harness has four wires coming out of the harness next to the radiator. One black and red, one purple/pink and black and two black wires. This hooks up my dual fans. they are working now. Now im having injector issues. Not sure how to determine if they are operating properly. When ignition is in "on" the fuel pump sounds for 2 seconds and when I disconnect a injector plug and measure both wire contacts I get 12.7 volts on each contact. Schematic shows the darker wire being a ground wire to ecm and the pink wires are power wires. Injectors pulse when grounded. I think mine are not grounded. I checked all grounds are tight and good. Just need to know what is causing my injectors to not release fuel. Car runs If I spray fuel briefly.

 

Use a meter to measure resistance across the two terminals of the injectors. Write down results of all 8. You want all within an ohm or two of each other. If 1-4 are 5+ ohms higher, they need to be replaced

Also, have you disabled VATS? The 2 sec FP prime is standard. If the engine fires and immediately dies, its likely a VATS issue