I have been at dyno for half of day today and I was unable to achieve more power beyond 5.5K RPM as short term fuel trim would kick in and gradually increase which then rich out AFR from 12.5 to 10.0. Does anybody know how to disable Short term fuel trim, perhaps, it's hidden in a correction table? If not, is that feature hidden?
Software version is 4.0.6
Attached is my log file. Please help! I'm also not a professional tuner so go easy on me.
Thank you,
Steve