I tossed this code today, just curious if anyone has experienced it as well, and possible things to look for.
2007 MX-5 w/ ~45k miles. CAI, full Goodwin exhaust/header (that's about it for "engine" parts)
Merging onto highway for today's commute to work. Got on it a little, but not overly hard. Had just up-shifted to 4th, and still on the throttle a bit (I'd say 60-80% throttle, shifting around 5-6k), when the car lurched (loss of power) for a split second, and the code came up.
Was raining out (ahh, Seattle life), and a lot of moisture in the air (cars in front of me). My hunch was I sucked up some water and burped the MAF sensor. I haven't checked the sensor out yet (it's after midnight, bit late to make noise), but will check wiring and maybe remove the MAF and clean it with brake cleaner.
I did have my ScanguageII running at the time, and just happened to have my MAF gauge running on it. Thinking that maybe that could be a cause of a thrown code (for god knows what reason), I swapped the gauge to something else. I cleared the code prior to the return trip home.
No code tossed after that on the drive home (~35 miles).