My X3 will load tunes just fine to the vehicle, but when I try to data log, it doesn't recognize or communicate with the car. It worked fine, then all of a sudden it stopped. I can't data log with the handheld or connecting it to my laptop. With both, it says cannot communicate with vehicle. Using my friend's handheld it still doesn't work. I can use EFI live and HP tuners to datalog and it works just fine. I'm in Houston and was trying to find a shop to tune it tomorrow, but I'm having no luck. Any ideas or has anybody had similar issues and has had them resolved?