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My car is having starting up in the morning since the cold weather came in. on 2001 Pontiac Grand Prix

Once it warms up 15-20 minutes,it will remain cranked but jerks into gear. Sometimes at a red light I will need to have my foot on the brake and gas to keep it from cutting off. Please help.

Asked by for the 2001 Pontiac Grand Prix
ck eng codes poss dirty throttle body or bad idler air control valve