This car was parked for several months. It had been running fine. When I tried to start it the engine cranks normally but will not fire. Fuel system is functioning fine. Spark plugs have been replaced. It appears that it has lost spark. The coils have been replaced, and it still does not get spark at the plugs. Note: while this car was parked the battery had lost it's charge completely, but has been recharged. Any thoughts??