My dashboard also has the engine symbol on and when i accelerate the EPC light flashes. I had Auto zone run a diagnostic on my car and it came back number 1 cylinder misfire and number 5 cylinder misfire. Today the car still bogs down but now neither of my symbols are showing on the dash. I heard possible fixes - spark plugs, coils, o ring, new cathodes, deep clean the injectors. Or worse scenario its my transmission. Ill take and recommendations.