I have a 1995 850, non turbo, automatic. We just replaced the engine with a junkyard one, new cap, rotor, plugs, wires, coil, FP relay, cam and crank sensors. I've double checked all connections. With a noid light im getting no signal to the injectors. The main relay "buzzes" with the key on. When I check the green wire with my test light the buzzing goes away. Good fuel pressure, runs off either but won't run on it's own. Car ran when it came in but had a bad rod knock so we replaced the engine.