My 1982 280zx n/a will start, hit 1000 rpm's, but will die immediately after. Wait 30 seconds and does the same thing. Power flashes on all electronics right before it dies. Recently replaced ECU but with exact same unit. Any idea's on what could cause this? I'm at my wit's end I've put a decent amount of money in restoring this POS and cannot afford to give up on it. ( I replaced the old ECU because it was sending constant power to the injectors and flooding the engine out.)
EDIT: If I slam or pump the throttle it still dies. It's like the throttle isn't giving it any gas. The fuel pump is new and I know the relay is functioning.