It ran great for a day, then started with a miss, and now it won't start. It will try to start and then acts like a cross fire, or waste spark back fire and quits. Here is a list of new parts. ECU, chip,coil pack,ignition module,cam sensor,crank sensor, balancer, and mass air. The wiring harness is open and no melted wires to be found. What am I missing? A brain? Well maybe. Any ideas out there? Thanks. Later....Danny