Quote:
Originally Posted by jakeru
Thanks for the info, JFP! Last summer I had a freak misfire episode (the CEL was flashing and engine clearly missing when it was happening, but fixed itself after shutting the car off, waiting a couple minutes, and restarting) that ended up being a P0303 - "Cylinder 3 misfire detected", so your advice seems like it should also be applicable in my case.
Looking under the car closely recently, I noticed there was evidence of a very a slight oil leak in middle cylinder on right (passenger) side. I wonder if that's cylinder #3. I have a set of new plugs ready to go, as well as new o-rings for the spark plug tubes. I suppose I should inspect the coils for cracks (especially whichever one is #3).
It's a 2001 boxster base 2.7 with a bit over 100k miles on it.
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Hey Jakeru! Porsche cylinders are numbered in order from front (closest to passenger compartment) to back. Bank #1 cylinders on pass side are 1,2 & 3. Bank 2, driver side are 4,5 & 6. so middle cylinder leaking on your car is #2.