Idle, stepper motor, fuel adjustments below 2600 RPM

Mark, Paul, anyone else who knows, is there a way to trim the fuel map for the area under 2600 RPM, that is involved in the idling and stepper motor kerfuffle?

Is this, in fact, one of the unknown tables seen in TunerPro?

Don't think so. There is the target idle table that is used as a lookup by the ECU to determine idle-by-engine-temperature. There may be fixed positions the ECU uses, and there may be a table that it uses as a voltage lookup. It might work like: IF TEMP = X, THEN STEPPER VOLTAGE = Y.

Or, I could be talking with arse.

Not the first time, I'm sure. Thanks Mark. Methinks there must be a way to change all this shit...