Why Does the Stoich Table Have Varying Values

[HX Kingswood]

Below is a snapshot from my E38 ECM. I understand the concept of Stoich and Lambda etc. but why is there a table from 0 to 100%?, that is 0 to 100% of what? In a non flex fuel system why is there not 1 cell only that can be filled at 14.7 for good gas or 14.1 for 10% ethanol for example?

Stoich.png

[edcmat-l1]

Below is a snapshot from my E38 ECM. I understand the concept of Stoich and Lambda etc. but why is there a table from 0 to 100%?, that is 0 to 100% of what? In a non flex fuel system why is there not 1 cell only that can be filled at 14.7 for good gas or 14.1 for 10% ethanol for example?

Stoich.png

Because stoich changes according to alcohol content.

[07GTS]

yea most if not all e38 can be flex enabled so the stoich table has to be able to suit

[JayRolla]

Like they said its there to suit flex so if not on flex just set the entire table to 14.7 or some do 14.1 for e10.