looks like 2008s use MAP

any word on 2009 using MAF?

 

My guess would be a mass airflow sensor like on the new Civics. Since the 09 Fit is getting the same fancy i-VTEC tech that the R18 Civic has, it makes sense. A big part of reducing losses is controlling the amount of airflow, and to do that, they need a slightly more sensitive sensor. Downside is it gets to be a pain if you put in a poorly engineered intake, as you will throw a CEL.