Quote:
Originally Posted by Nicky English
Hi All,
The CEL started flashing on my 04'Boxster S this morning and then developed a misfire. After driving a little further the fault went for several miles, then came back again. I've been told to have the Air flow meter changed then the spark plugs, does that sound like good advice ? aparently the fault codes showed a misfire on most cylinders (or at least 4 cyls I think). Im a new member, so thanks in advance to anyone taking the time to reply, much apreciated !! 
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Well, honestly, the first thing you should look at is "What was the last thing done to the car before the CEL came on?"
If you just had the spark plugs changed a couple weeks ago, then I start by pulling off the coil sticks, checking to make sure the spark plugs are properly torqued down, and then making sure the coil stick snap into place.
If the CEL comes on again after that, pull the codes, and let us know what they actually are.
BC.