My "check engine light" turned on today and also starting today the gas gauge will first read full (I recently filled up) and then the gauge will read empty and the low gas light will turn on when I stop the car at a stoplight. When the traffic light turns green and I start driving again the gas gauge will show full again. Does anyone know how to fix this and if it's a serious problem or can I drive the car for awhile to see if the problem resolves by itself? It rained yesterday and I've noticed that in the winter my "check air bag light" goes on frequently when there is humidity in the air. Maybe the check engine light issue and gas gauge issue are also related to high humidity???