[jondee86]

The ECU is an Adaptronic e440d and it does have a lot of tables that adjust
for temperature, but once the engine is up to operating temp all the tables
are zeroed out except for the IAT table. So when manually adjusting the VE
values obtained by the autotune function to get the trim closer to zero, I only
look at the logs where the engine is at operating temp and under steady load.

There is a wideband connected directly to the ECU for monitoring the AFR.
The manual is quite comprehensive but it does not explain some of the finer
points. I am trying to discover if the VE set by the autotune is before the
IAT correction is applied, or after ?

Looking at the logs it seems it is before, as the correction applied by the IAT
table makes the reported AFR leaner than the target AFR. On a N.A. engine
this would be acceptable, but on a F.I. engine I am not so sure.

I'll ask Adaptronic about the actual strategy used.

Cheers... jondee86

PS: I spent some time today researching IAT compensation and have come
to the conclusion that the answer is to set the target AFR a bit richer and let
the compensation table take out fuel according to the manifold temperature.
So long as the adjusted AFR's are in line with the recommended AFR for the
level of boost, I think that this should be fine.