I suspect a dynamics compensation solution, but have an issue on hot days when the engines been sitting long enough to cool down (around 50*C ECT) but the IAT's have hit around 60*C from sitting.
It will run real lean until the coolant comes back upto temp, then runs fine. Not a major problem as very short lived, but must be a way to tune out.
I've got the IAT vs flow rate dialled in for running SD. So all I can think is that IVT is pulling low due to the ECT, and all I can see that's IVT driven related to fuelling is the fuel puddle etc.
Tried Logging IVT but it looks odd, going from 190*C at startup upto 255.8 then the values go negative 255.7*C and back towards zero. Based on this i'm not sure which end of the scale in the tune to try altering fractions.
Everything's fine from cold start with ambient IAT's.