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Secondary Air Injection System Error
Did you guys figure out what was causing this on your cars? I have a 05 545i with 120k and I just got the error message after it sat for a month except my code is (P0491) which is the left bank.
This car is like a HOT Physco girl friend!! I love it and I can't stand it at the same time!!
It has other issues also. I should probably open this in a new thread but since your here.
Have either of you had smoke come from your tail pipe when you first take off after you sit at a light for more than a minute idling?
Thanks for listening!
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