My Service engine soon light shows when after running the car for about 2 min. I recive the "26 QDM fault" and the "46 fuel enable failure". I've understand that the 26 QDM has something to do with the air pump, but the 46 fuel enable failure seems hard to find what it means. When running the car and clearing the error codes, the service light stops glowing, and the engine idle is much smoother for about 5 seconds when it goes back to to way it was before and the light shows again. What does the error codes mean, and what can be the problem with the car?