When standing on the Air Filter side of the car, remove the Black Rubber Snorkle between the Air Flow Sensor and the Throttle Body. Place a .002 feeler gauge between the Throttle Plate and the body. Loosen the 10mm Nut which secures the plates on the left side of the Throttle body and gently push on plates to take up the gap. Tighten the 10mm nut and reassenble. it takes a few days to take full effect. If this doesn't correc the problem there are more things that can be done.