I'm glad to hear that's all it was, and your car is back to perfect. If you don't mind me asking how many miles do you have on the coil packs? I replaced mine ~ 90K as a 'while you are in there' job when I was doing my clutch, IMS, RMS, and 90K service. What I found was shocking, all 6 were cracked, these are the worst two:
I've got to figure being low on the engine and somewhat exposed to the elements doesn't help the survivability of these.
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