Tried scanning my buddies 98 Z28 last week and the scan tool would not connect, but the tuning tool would. A prompt came up about some sort of error. FWIW, the scan tool connected to a few other cars just fine that day. But his is the first 98 Fbody I have tried to connect it to. Is there a software update or patch for this? Or is it a problem with his car? I tried it like 5 different times and got the same error every time.