It's a really simple system, do you have power at the injectors? The control unit grounds them but if they aren't powered up, grounding them doesn't do much good. The ignition coil negative provides the trigger for the ECU. The main "trouble" I've seen is the relay mounted behind a cover over at the battery. An 82 NA should be real close if not exactly the same as your 80, 83 was when they changed things some. If this doesn't help, get a FSM.