HELP !!!!! So I was driving and my negative cable Cale off whole jeep shut down. I had a check engine light on for fuel injectoe number 4. When I pulled over and reconnected its No check engine light with key on postion . no gen light and we can crank till next Sunday. New CPS New ALT new map sensor. I am getting fuel but no spark. Im about to replace ignition coil but no lights with key in on position has me baffled