1999 Z3 I've had for a month or so. First had check engine light come on due to gas cap- changed the gasket after OBD2 check Waiting for light to go off after several short runs. Read somewhere that disconnecting battery(-) terminal for 10 minutes would reset it, I reconnect and start engine and ABS and ASC lights come on. car runs fine. What did I do wrong? Car has 77k and runs perfectly