Stu:

I would like more info

I'm not after the numbers as thats what I would pay you for (imho the map values are what takes the years of experience / intelligence to be able to do...).

I reckon I can get my head around the methodology of putting a map into a chip now you have explained it , but I would like to know more about how you implement the functionality - say a high ACT retardation, or a low ECT enrichment .

Are they separate lookup tables, or are they simple parameters / co-efficients in an equation already implemented in the ECU (depandant upon ECU type)?

Tell me to fook off if you want lol

Neil.