Live Data recording on my Maxi Sys Pro is a joke and won't play back in movie form like watching when driving car. It will only record pids selected that were  viewable on the screen at the time you select record. When you go to play back the recording , the screen  of  Pids you selected are all mixed back  in pages of pids listed (that did not record)you need to scroll through  to find each again separately and you have to slowly drag a time cursor manually to see the values change.
  Your best bet option  is to record 3 things in graph merge and on playback slowly drag the time cursor and see if you can catch anything.