MoTeC M880 - Manual (Page 12)

10 Overview
Calibration & Setup
Calibration Tables
The Calibration Tables determine how the output devices should be
controlled for various sensor readings. For example the fuel calibration table
determines the base injector pulse width for all combinations of RPM and
Load. Other calibration tables will also affect the fuel injector pulse width such
as Air Temperature compensation and Engine Temperature compensation.
The ECU determines the amount of fuel to inject by first calculating the RPM
and Load then extracting the corresponding value from the table. If the RPM
and Load do not match an RPM and LOAD point exactly then the values from
the closest sites are mathematically interpolated to arrive at an intermediate
value.
A typical 3 dimensional fuel calibration table is shown below.
The calibration tables may also be represented graphically as shown below.