1. Could be faulty oxygen sensor that screws up your air-fuel ratio readings.
2. If you have replacement ECU or piggy-back installed and you have put in new tuning bits, could be the settings/mappings need to be checked
Its been a while since my last post,been busy lately.Anyways i will like to share with you guys this amazing machine honda has cooked up for its bid to win th 2010 Japan GT ,due to new regulations Honda had no choice...