Hey man, I dont own a Honda, and im sure a lot of guys will probably give you better advice, but have you changed your coolant recently? I know on my Cougar, my OBDII diagnostics read my car running around 220degrees on a really hot day, which caused the ECU to pull timing automatically and the car to run poorly, but after a coolant flush in my garage, I ran consistent 190s across the board. The coolant was a light brown and smelled like shit before I flushed it.