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So I had a slight miss under load, not enough to throw a ses light. Finally threw a code and went into limp mode.
I changed all the plugs, all looked very clean (27k miles). Took her out, another ses light, read the code and misfire on number 5. Swapped the coils around and miss still on cylinder five. Took it to the dealer to check the injector out, they swapped them around and still miss on five. They boroscoped it and found excessive carbon on the intake valves.
Only 27k miles and I have carbon issues? Cleaning not covered by CPO so all out of pocket, ouch. I just installed a oil catch can but doubt it helps that much in the future.
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