When I drive the car it doesn't happen until its warm and only at idle sitting at a light. The rpms fluctuate for a second and the cel comes on. As soon as you give it throttle to pull away it goes out and doesn't do it again until you come to an idle. I cleaned the MAF electronics and it still did it. I replaced the MAF electronics and cleaned them and used diaeltric grease before putting the new one in. Other than that the car runs great. Any ideas.