hi there, im working on a 1997 850 2.4 non turbo auto, has no spark or injector pulse, but fuel pressure is good. I have no square wave signal from the cam sensor, but i do have 5v on the signal wire and 12v on the ecm+ but missing the ecm-. i replaced the cam sensor but no help. I replaced the ecm with used one and the ground returned until i tryied starting it, then i lost it again. the used computer did not have the exact same numbers on it, not sure if that matters. Any help would be great Brandon

 

Sounds like the injector relay that is above the radiator on the right when standing in front of the car looking at the engine.