Does it work on a 2008 2.4 cobalt? Because of the different ECM and all. I tried searching, I couldn't find anything that answered my question.

 

yes I belive so make sure you get the CN series though go to there website and it tells you

 

And all the features it lists works?

 

bump for second question

 

well it depends on what your car comes with all the gauge does is plug into the OBD2 port and read stuff off that but yes I bleive it does read most of that stuff if not all take my car for example it came stock with a wideband so the gauge can read it if my car didnt come with it I couldnt read it you see what I mean?