My situation:

I had "Missing at idle" problems beginning about 1100 miles. Took it into the dealer and had it Star Tech'd... The dealer said there were no error codes... But dealer mech. sat in car and felt the "missing" rough idle...

He suggested fouled plugs as I run 98 octane fuel in the car. (which is a stretch in my opinion).

Pulled plugs and noticed one with much more carbon on it (which usually means it's not firing properly)... Replaced plugs with Iridium plugs and a tank of 91 octane fuel and it ran beautifully for two days, then started doing the same thing again...

I'm starting to think there is a hick-up in the ECU or the timing has been retarded so much on the OEM ECU that it is running too rich...

Your info on the TSB would be extremely helpful as my dealer says there is not a TSB for this issue... The TSB # should be listed on your repair order, as your dealer must list this code to be reimbursed for their repairs... Take a look at your receipt...