the board comes loaded with the OEM map for the ECU it is fitted to (when you order, you need to give nistune your ECU part number.)
to map the car, you then adjust this OEM map over the rev and load range. its as simple as pressing + or - on the keyboard to increase or decrease the fuelling at a specific point. same for timing.
you have immediate control over :
Fuel map
Knock Fuel map
timing map
knock timing map
Fuel Load / RPM scaling
timing Load / RPM scaling
Theoretical pulse width (injectors)
MAF translation
temperature hysterisis
cold enrichment
warm enrichment
cranking enrichment
cranking timing
TPS closed timing
acceleration increase fuelling
rev limit (up to 12500RPM)
speed limit
temperature limit
O2 cut
idle speed (warm and cold)
you can resize injectors
change MAF in seconds
switch flags on and off (O2, EGR etc)
and its all very simple. im gradually learning what all the functions do. but i still need to learn how translate the scales into movements on the car.