Ahhhhhh.. Another problem. I went for the state inspection of my first BMW, and they rejected it for emission . It has only 64 K miles on it. I just got new muffler (full assembly, original BMW from junk yard), the injectors etc are clean, ambient temperature sensor is not working, and for some reason, OBD II gives the error P1477, but I deleted it about two hours before I went for inspection.
What can be the reason?