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Stl-986 · 10-17-2019, 01:24 PM

most likely a bad coil and/or cracked spark plug tube. I would do AOS also if I didn't know the age or mileage. Typically when one coil/tube fails the rest aren't that far behind. Might as well do them all, all new plugs and throw in an AOS. Clear the codes after and then take it for a drive.

10-17-2019, 01:24 PM	#5
Stl-986 Registered User Join Date: May 2017 Posts: 1,182	most likely a bad coil and/or cracked spark plug tube. I would do AOS also if I didn't know the age or mileage. Typically when one coil/tube fails the rest aren't that far behind. Might as well do them all, all new plugs and throw in an AOS. Clear the codes after and then take it for a drive. __________________ 2000 Boxster Tiptronic 2003 Boxster 2003 996 C2 Cab 2002 996 (SOLD) 1986 944 (gone but missed)