Head over to Amazon, buy a bluetooth OBD2 dongle. Plug it into the port in your car, typically under the steering wheel. Load up the Torque app on your smartpho

Head over to Amazon, buy a bluetooth OBD2 dongle. Plug it into the port in your car, typically under the steering wheel. Load up the Torque app on your smartphone. You now have real-time direct access to all the diagnostics, fault codes, and can clear your own Check Engine light. With the app you can create your own dashboards of gauges, monitor all your car's sensors while driving, and log everything for export.