spark plug gap bridged, what is the cause?

mstgeer · 06-01-2012, 10:38 PM

07 328xi with ~75k miles, just got the car. Car had a slight miss on cold star-up. #5 plug, balance of plugs were worn but looked good. All were NGK PLZFR6A11S. Replaced with NGK LFR6AIX11

What would cause this? Dying coil?

Efthreeoh · 06-02-2012, 07:13 AM

I'd say that's a good guess. Carbon fouling due to improper spark (heat) generation.

06-01-2012, 10:38 PM	#1
mstgeer Private 31 Rep 97 Posts Drives: 017 F85 Donnington Grey, Arago Join Date: May 2012 Location: Waterford, PA iTrader: (2)	spark plug gap bridged, what is the cause? 07 328xi with ~75k miles, just got the car. Car had a slight miss on cold star-up. #5 plug, balance of plugs were worn but looked good. All were NGK PLZFR6A11S. Replaced with NGK LFR6AIX11 What would cause this? Dying coil?
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06-02-2012, 07:13 AM	#2
Efthreeoh General 19186 Rep 19,718 Posts Drives: The E90 + Z4 Coupe & Z3 R'ster Join Date: May 2012 Location: Virginia iTrader: (0)	I'd say that's a good guess. Carbon fouling due to improper spark (heat) generation.
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