I have a really bad feeling about this thread. Someone needs to look at the wiring diagram and figure out exactly what it is that you are grounding. My fear is that you are defeating the safety feature that won't let the fuel pump run after an accident. I am not familiar with this particular application, but the way the Europeans normally do this is to have the DME supply the ground to the fuel pump relay, which it does only when it is getting an ignition pulse. This keeps the car from pumping fuel out on the ground after an accident when the engine is off but the key is still on. I don't know where you are connecting this ground, but I don't like the sound of it.