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golfglasgow · 12-02-2009, 02:07 AM

Hi just got codes,1999 boxster with 74k.Drives well till you hit 3500-4000 revs then splutters badly,brand new plugs have been fitted. codes are 304 cylinder misfire,305 cylinder misfire and 306 cylinder misfire.Could all 3 coils go at once?Has anyone had this problem? does anyone know how to cure this? All advice would be greatly appreciated as this is driving me crazy.

12-02-2009, 02:07 AM	#1
golfglasgow Registered User Join Date: Nov 2009 Location: glasgow Posts: 14	codes 304,305,306 cylinder misfire Hi just got codes,1999 boxster with 74k.Drives well till you hit 3500-4000 revs then splutters badly,brand new plugs have been fitted. codes are 304 cylinder misfire,305 cylinder misfire and 306 cylinder misfire.Could all 3 coils go at once?Has anyone had this problem? does anyone know how to cure this? All advice would be greatly appreciated as this is driving me crazy.