Rough running
#1
Rough running
So my 2001 A6 4.2 was running great then went through a car wash and the check engine light now flashes and the car runs really rough. pulled codes and they say large air leak, missfire on cylinder 1 and 5. Is there anything that could have happened to cause this in the carwash, or was it just a part that went bad at that point and time. Any help would be great.
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