Just got my MPVI2 today. I was able to get it set up and was able to read and save my 2001 8.1 K2500 stock tune. I also did a very short scan just sitting in the drive way. I made sure the radio was turned off and I didn't touch any thing else while it was reading.

I have not attempted to write anything yet. This truck is bone stock with less then a 100,000.

Now my radio is in "LOC". The same thing happens whenever I try to use my torque App when I plug into the OBD port.

Any tricks to prevent this? Is it unsafe to try and write to the ECM?

asfound21521.hpt