Hi i have an 1993 ED Ford Falcon which would start very easily every time and the other weekend we took old transmission out leaving motor in car only thing touched there was starter motor and following weekend installed another transmission (battery unhooked for week) now the car cranks over seems to be getting both petrol and LPG but no spark ?? any idea's what has happened or what tests i can run to try and eliminate problems ??

Thank You Paul

have you plugged everything back in its correct place?