User guide

Product Introduction Page 7
What Is A Map?
The AccessPORT reprograms the tuning parameters inside the factory engine control unit
(ECU) using map files, which contain specially written instructions for the AccessPORT to
follow during the reprogramming process. A map file can contain information for any number
of different modifications or enhancements to a vehicle, ranging from a race map for a
heavily modified vehicle to an economy map for a stock vehicle. Through the use of the
AccessPORT and different map files the ECU can be reprogrammed to accommodate
virtually any vehicle configuration.
Revision 1.078 Nov 21, 2012