Review on Autel MaxiScan MS300 Diagnostic Vehicles by Kyle Deel

I had high hopes for this tool. I found the DLC quickly, it connected perfectly, instructions appeared on the screen and I clicked scroll. Popped out the code and then suddenly asked: Delete? I'm not sure why it was asking me if I wanted to delete it so I looked it up in the manual I had to download which was easy and it said to press the scroll button to exit , if I didn't want to delete. So I pressed the scroll button. and the code will be cleared. I scanned again and found there were no codes. Now I have no idea what's wrong with the motor. I have to take it to a mechanic which will cost a fortune to do my own diagnostics and see what I think might be a problem. because the code is no longer in my car computer system. If you want, the tool comes in handy and I haven't had any problems with it. But to fix the "error" and I'm not even sure how it came about that the tool was telling me to erase, the instructions must be correct OR the wiring in the block itself is faulty and I have that pressed the wrong button. only 2 on the device. It has made me so angry I can't think straight.