I think I found the ground 101, located on the end of the intake manifold (not on the thermostat or engine wall), I cleaned with a wire brush and tried starting. There was also a loose vaccuum line I reconnected and tightened with a zip tie. When I crank the engine, same original problem: starts, and then stops instantly. But now the only time a code 0 appears in when I tried to start it and it shuts off, while my key is still on II the solid check engine light appears.

Now heres the weird part, while extracting OBD1 codes, I am getting my code 15 (don't know why) again from the check engine light, but now also my ABS light is flashing giving me a code 1 8. 1 8 ABS code means high pressure system (not sure exactly what that means, high pressure in my hydraulic brake lines??) Now It seems I'm back to the beginning.