No answers yet, but this graph kinda summarizes my concern. The LTFT is around 8% at zero load, then goes up to maybe 15% with a small amount of load, then drops to zero at higher load/rpm.
The colors indicate LTFT value.
Again, this is on an OFT flex fuel tune with flex fuel sensor indicating about 76% ethanol for this log.
Is this pointing to an exhaust leak?
