Excessive Airbox Temps - Band Sensor?

I just recently started experiencing a problem with loss of boost/RPM during takeoff. After flying again and logging the TCU, I'm showing excessive airbox temps with quick fluctuations. Some TCU data is attached for review. Could this be a bad / dirty sensor? Anything else that would cause this to suddenly be a problem.

Today's meteorological data is below. I have certainly flown many times with higher outside air temps and no problems. My oil temp is staying low at >190, and CHT was in the green.

Time: 0700

Location: Plant City Florida

Aircraft: Tecnam P2008TC with 300 engine hours

OAT: 25C

Humidity: 96%

Alt: 29.98 inHg

DA: 1816

Runway Elevation: ~200'