I found out there are 2 types:- 3 speed and 4 speed automatic
http://www.internetautoguide.com/car-specifications/09-int/1996/toyota/corolla/index.html
How dangerous is it if a 1cm x 2cm plastic from the spark plug fell inside the spark plug chamber? Tried vacuming it out but it is stuck inside. Do I need to ask a mechanic to open the engine head or can...