Hi everyone. I'm Ang and I have a Kia Rio 2004 which I have a small problem with. I had it checked out and have found out that I have a faulty Speed Sensor. I have to go away for the weekend next week on a very very long drive and would be grateful if anyone could tell me if I need to get it done before I go, is it anything urgent and does anyone know how much it is going to cost me please? I have never even heard of speed sensors before....duh!! Thanks.