GM PIDs

[ColPaul]

Thanks everyone for all the help. I got OBD Fusion with user PIDs working on Dad's iPad to log. One of the PIDs that's missing is $199D. I added that but don't know how to interpret the results. I currently just using the default conversion of (A * 256 + B) to convert hex to decimal output.

[ColPaul]

I tested today and evidently it returns a single byte (vs 2 byte). Very spurious results with iOS and OBD Fusion.