Yes this system has the ability to datalog. A laptop is used to record all the engine sensor readings as well as fuel load while driving down the road. Tuning your system amounts to connecting a laptop using the ALDL cable and taking a fifteen to twenty minute drive in varied conditions. The resulting datalog file is emailed to Patton Machine . If additional tuning is warranted  a new profile is programmed into a chip by Affordable Fuel Injection and sent to you for installation. Chips are done on an exchange basis.