I get more and more confused.
If I, in my calibration (176AE106) put in 14.5 in the AFR table the bold font disappear, indicating that closed loop operation is no longer present.
Yes it is a Very confusing topic because we really don't know how the fuel maps are being used by the Delphi ECM.
A Perfect Example:
The Bosch o2 sensor that we have on our bikes can be used for many types of fuel. Storich for gasoline is 14.7. Stoich for ethanol is 9.0. But in BOTH cases the output of the sensor is the same (~.5 volts) and only the scale on the Air/fuel ratio meter must be changed.!
Some may ask "how is that possible".,.It is possible because the o2 sensor is just looking for a "lack of" or an "abundance of" oxygen molecules and does NOT really care (or has any idea) what fuel you are using. When you combine the proper amount of FUEL (any fuel) with the proper amount of oxygen molecules you will be at stoich. That is ALL the o2 sensor cares about,, and that is the AMOUNT of o2 in the exhaust stream.
This is the reason why Lambda is so widely used instead of an actual a/f ratio number.
Stoich for gasoline is 1.0 Lambda (14.7)
Stoich for Ethanol is 1.0 Lambda (9.0)
Stoich for propane is 1.0 Lambda (15.5)
Stoich for methanol is 1.0 Lambda (6.4)
So..! the big question is why does the SEST air/fuel ratio maps shift all the numbers downhill when you click on 10% Ethanol w/ a touring map? When you think about it, it really should not because we really don't want to SHIFT our a/f ratio. All we really want to do is compensate for the 10% ethanol. I believe (my theory) it shows that only for ease of understanding and actually does NOT perform the function like it appears.
The REAL answer to this question would require talking to the software developers or having the source code for the assembly language of the firmware which Delphi would never release in a million years.