Re: Reading ECU on a laptop??
Depends on what you mean by reading the ECU? SCT has a flasher/data logger that can be connected to a laptop (Xcalibrator 2). You can then use SCT's software to log various parameters while you drive. Save the log and review it with the same software or export it s a *.csv file.
The Xcal2 will hold three programs. When you initially use it to load a program into the PCM the Xcal 2 will download and store your OEM program so it can be put back if you want to.