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			Well if you have no clue then maybe you shouldn't say anything.  And if YOU googled you would have known that isn't miss fire on 4 cylinders.
 It's actually misfire on cylinders 1-3.  I would start with just pulling the coils & plus and replacing the plugs.  clear the codes and then take it for a drive.
 
				__________________2000 Boxster Tiptronic
 2003 Boxster
 2003 996 C2 Cab
 2002 996 (SOLD)
 1986 944 (gone but missed)
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