Hi, I'm new, And have had my cobalt LS for about a year now, my car 2 days ago started jerking and surging and then ENG PER REDUCED showed on the DIC, and then my CEL came on. I took my car to autozone to get the codes read, it was P0101, P0068, P0842, and P0717. P0068 is throttle body airflow...
