Hey all new to the forum. Recently purchased a non running 164e to mess around with. Trailered it home and when I got back I tried starting it. Fired right up and ran decent. Ran the car a bit and it slowly started to run rougher and rougher. Would stutter out at 1500 rpms. Replaced fuel filter and drained tank then filled it up. Got the same result. Went out the next day and it wouldn't start. Has good spark, good fuel pressure. Can hear fuel pump run. Car does fire but is running off the cold start injector. Regular 6 injectors are not getting any power. Have tested and replaced temp sensors. Threw a new ecm at it to see what would happen (was cheap and in the area). Same thing no power to injectors. Would my next step be to pull the harness apart and look for breaks in wires or could there be another sensor or something causing no power to all 6 injectors?