went to autozone today to get codes read... they plugged in scanner, and the scanner couldnt read car..... went to advanced same thing happend... How come?.. about a month ago i had them red and it worked fine.. the only thing i changed on the car was i had a radio installed.. any ideas?

 

If the computer were bad it should at least throw a hardware code I think. Maybe not though, I don't have EFI, so I don't have to worry about codes [8D]