Weird end of line value

[camilo]

0, A, 1ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿþ°

The line above is the last saved by Freematics. This happened with a Nissan Sentra 2008 (ISO 9141). Also, this same happened with a Chevrolet Spark 2013 (KWP).

Other problem that I have see is that the second ride doesn't work, so steps will be.

1. Plug
2. Start engine
3. Drive 5 min
4. Stop Engine -> at this moments seems to be end of line problem
5. Wait 2 min.
6. Start ending

[protomor]

start ending? What does that mean? When you turn off the car, do you unplug the unit or leave it in? If your OBD2 port has power, the unit will try to log. But if your car is off, it'll permanently time out.

[camilo]

It was to be "stop engine" .

When I turn off the car, I leave the freematics plugged.

[protomor]

I would unplug the freematics unit and THEN turn off the car. Otherwise, the values being read are junk.