you download the latest version of winaldl to your laptop and install it ,then you open the configuration screen and match your ecm to its list of ecms, change your baud rate to 4800 ,and your com port to 3 i believe . Once configured you can connect the usb to your laptop and the aldl to your car . this program gives you all your values that your sensors are reading , it gives you short and long term fuel trims , knock counts ,everything but boost is listed .
It is a bit of a challange to get configured but it works awesome for me ,i had a backfiring ,lean running ,almost overheating t-type that wasnt reading anything correctly when i started using this program a few months back . the car now runs and drives perfectly (keep in mind i work about once a week at it , not everyday ). you may want to check out (win aldl screen shots ) on your browser it will show you every screen in this program . this is a diagnostic program and although after tuning your car to the proper settings it will run more efficiently and be easier on gas than a non tuned model , it does not add power to your car , it simply gets the most power out of what you have and directs you to problems that might be occuring under your hood