I just swapped a D15Z1 from a 92 civic vx into my 91 lx 4 door civic. Everything is done, but the car will not start. I have narrowed the problem down to the fact that the injectors are not firing. I have spark. I have fuel pressure. The injectors are swapped to OBD 0 peak and hold type (low impedence) because the 92-95 cars have saturated, high impedence injectors. The injectors always have power and the ecu is supposed to fire them, by grounding each injector. I have manually grounded an injector, and it does fire if you do that. Anyone have any Idea what could be wrong here? The ecu I am using is a pm6 out of my other civic, and it was just running, so I'm sure the computer is good.