Please help when turning steering to full lock the amber warning triangle comes on with the fuel shutoff not available message coming on. Take off full steering message goes and when turning off and on again so does warning light. Sometimes the amber engine light comes on as well. I replaced the battery a week ago and it felt like a different car and the messages didn't come up as much and the car felt totally different and sounded a lot better. A week later and it has gone back to the same as before any ideas thanks