The data logging aspect of EZ Lynk is a great selling point. How many times have you experienced an intermittent problem in your days behind the wheel? The kind of issues that can surface sporadically and then go away for a week are extremely hard for any shop, technician, or tuner to diagnose. By being able to hit the record button when your truck acts up, you can capture the exact behavior you would like to share with your tuner to diagnose the issue, whether it be mechanical or tune-related. It not only saves you and your truck potentially lengthy downtime, but it also saves your tuner a lot of headache as well.