78_280Zlaundry

Hi I have a 78 280Z that wont run. 2 Owner California car, very clean. I had it running when i bought it, but it always started rough, backfiring and sputtering. After replacing some hoses, I drove it about a mile and it started running very rough and had a major loss of power. I have checked for spark and fuel pressure (you can hear the pump running, too). It will crank and not even backfire or fire at all. Compression is also good. I do question the wiring because the pins on the ECU/ computer and the leads on the fuel injectors do not correspond with a wiring diagram I have. Faulty crank sensor? I have replaced all the easy ignition stuff- Wires plugs cap rotor. Really at a loss, ive never worked on anything with EFI and no OBDII before. Thanks