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ChrisZang · 03-17-2011, 08:54 PM

OK, let's assume for a moment that they never got changed...
How many kilometres do you have on the car?
If it's more than - let's say - 60,000 it could well be worn spark plugs.
So why don't you start there?

One tip for changing spark plugs:
The electrical connectors which snap on the coils must really snap on and they are pretty hard to get all the way on (you MUST hear a click when you put them back on) otherwise you just introduced more misfire (ask me how I know

03-17-2011, 08:54 PM	#4
ChrisZang Registered User Join Date: Mar 2006 Location: San Carlos, CA 94070 Posts: 1,450	OK, let's assume for a moment that they never got changed... How many kilometres do you have on the car? If it's more than - let's say - 60,000 it could well be worn spark plugs. So why don't you start there? One tip for changing spark plugs: The electrical connectors which snap on the coils must really snap on and they are pretty hard to get all the way on (you MUST hear a click when you put them back on) otherwise you just introduced more misfire (ask me how I know __________________ I still wave at Boxsters, but they no longer wave back :-( 2002 Boxster S "Violet" (sold but not forgotten) 2009 Carrera 4S "Kelsey" (current ride) 2015 FIAT 500e "Nikki" my commuter car Last edited by ChrisZang; 03-17-2011 at 08:58 PM.