the device can read and delete not only error codes but the device is also a clear text display. such as errors p131 little voltage at injection etc.
device can be evaluated with the other data. such as temperatures of cooling water, exhaust, etc.
throttle, boost pressure, speed, ignition timing and much more.
Operation easily infect an ignition and off you go.
I have the unit after receiving the latest software release also brought that was easy on the PC.
Conclusion: more for parr euro can device a lot more than the standard 30 euro OBD 2 devices. of course not what can the device for 500 euros. but for the upscale hobby needs more than adequately.