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thstone · 02-12-2016, 11:53 AM

Could be true.

If the old plugs were worn, the timing and fuel mix might need to be re-optimized for the new plugs. Not likely, not normal, not typical; but theoretically possible.

I'd drive it for a hundred miles or so and see if the ECU re-adjusts and the power comes back. If not, I'd take it back to the mechanic.

02-12-2016, 11:53 AM	#3
thstone Certified Boxster Addict Join Date: Nov 2010 Location: Los Angeles Posts: 7,669	Could be true. If the old plugs were worn, the timing and fuel mix might need to be re-optimized for the new plugs. Not likely, not normal, not typical; but theoretically possible. I'd drive it for a hundred miles or so and see if the ECU re-adjusts and the power comes back. If not, I'd take it back to the mechanic. __________________ 1999 996 C2 - sold - bought back - sold for more 1997 Spec Boxster BSR #254 1979 911 SC POC Licensed DE/TT Instructor