What is the problem of low airflow when Audi q7 is idling?

Hello, there are many reasons for this question. Air leakage from the engine air intake hose, damage to the waste gas valve and damage to the carbon canister solenoid valve may all cause this fault code. This needs further examination. I hope I can help you. I wish you a happy life. Ask the car master. 4S shop professional technician, 10 minutes to solve.