The only difference in the two times I downloaded the .api and installed it was the OS i was using. First was on the Mac side of my computer, and the app wouldn't show timing, canbus, or coolant temp. The second time was on windows 7 and everything is working great with the box on the hard fuel tune. I wonder if the way iTunes interacts with the phone is different for Mac vs. Windows and that's why it got screwed up.